diff --git a/_examples/ls-remote/main.go b/_examples/ls-remote/main.go
index 68c0454a6..42d9b4eb2 100644
--- a/_examples/ls-remote/main.go
+++ b/_examples/ls-remote/main.go
@@ -19,7 +19,7 @@ func main() {
 
 	log.Print("Fetching tags...")
 
-	// We can then use every Remote functions to retrieve wanted informations
+	// We can then use every Remote functions to retrieve wanted information
 	refs, err := rem.List(&git.ListOptions{})
 	if err != nil {
 		log.Fatal(err)
diff --git a/_examples/merge_base/helpers.go b/_examples/merge_base/helpers.go
index b7b1ed696..179a81765 100644
--- a/_examples/merge_base/helpers.go
+++ b/_examples/merge_base/helpers.go
@@ -13,7 +13,7 @@ func checkIfError(err error, code exitCode, mainReason string, v ...interface{})
 		return
 	}
 
-	printErr(wrappErr(err, mainReason, v...))
+	printErr(wrapErr(err, mainReason, v...))
 	os.Exit(int(code))
 }
 
@@ -52,7 +52,7 @@ func printCommits(commits []*object.Commit) {
 	}
 }
 
-func wrappErr(err error, s string, v ...interface{}) error {
+func wrapErr(err error, s string, v ...interface{}) error {
 	if err != nil {
 		return fmt.Errorf("%s\n  %s", fmt.Sprintf(s, v...), err)
 	}
diff --git a/_examples/progress/main.go b/_examples/progress/main.go
index 357703c9f..074430f86 100644
--- a/_examples/progress/main.go
+++ b/_examples/progress/main.go
@@ -22,7 +22,7 @@ func main() {
 
 		// as git does, when you make a clone, pull or some other operations the
 		// server sends information via the sideband, this information can being
-		// collected provinding a io.Writer to the CloneOptions options
+		// collected providing a io.Writer to the CloneOptions options
 		Progress: os.Stdout,
 	})
 
diff --git a/_examples/tag/main.go b/_examples/tag/main.go
index 1e6212bff..93192b0bb 100644
--- a/_examples/tag/main.go
+++ b/_examples/tag/main.go
@@ -15,7 +15,7 @@ func main() {
 	CheckArgs("<path>")
 	path := os.Args[1]
 
-	// We instanciate a new repository targeting the given path (the .git folder)
+	// We instantiate a new repository targeting the given path (the .git folder)
 	r, err := git.PlainOpen(path)
 	CheckIfError(err)
 
diff --git a/config/branch_test.go b/config/branch_test.go
index 2dbe888c7..6d9ca8631 100644
--- a/config/branch_test.go
+++ b/config/branch_test.go
@@ -38,7 +38,7 @@ func (b *BranchSuite) TestValidateMerge(c *C) {
 	c.Assert(badBranch.Validate(), NotNil)
 }
 
-func (b *BranchSuite) TestMarshall(c *C) {
+func (b *BranchSuite) TestMarshal(c *C) {
 	expected := []byte(`[core]
 	bare = false
 [branch "branch-tracking-on-clone"]
@@ -60,7 +60,7 @@ func (b *BranchSuite) TestMarshall(c *C) {
 	c.Assert(string(actual), Equals, string(expected))
 }
 
-func (b *BranchSuite) TestUnmarshall(c *C) {
+func (b *BranchSuite) TestUnmarshal(c *C) {
 	input := []byte(`[core]
 	bare = false
 [branch "branch-tracking-on-clone"]
diff --git a/config/config_test.go b/config/config_test.go
index db0932caa..54eb5e1a8 100644
--- a/config/config_test.go
+++ b/config/config_test.go
@@ -9,7 +9,7 @@ type ConfigSuite struct{}
 
 var _ = Suite(&ConfigSuite{})
 
-func (s *ConfigSuite) TestUnmarshall(c *C) {
+func (s *ConfigSuite) TestUnmarshal(c *C) {
 	input := []byte(`[core]
         bare = true
 		worktree = foo
@@ -60,7 +60,7 @@ func (s *ConfigSuite) TestUnmarshall(c *C) {
 	c.Assert(cfg.Branches["master"].Merge, Equals, plumbing.ReferenceName("refs/heads/master"))
 }
 
-func (s *ConfigSuite) TestMarshall(c *C) {
+func (s *ConfigSuite) TestMarshal(c *C) {
 	output := []byte(`[core]
 	bare = true
 	worktree = bar
@@ -119,7 +119,7 @@ func (s *ConfigSuite) TestMarshall(c *C) {
 	c.Assert(string(b), Equals, string(output))
 }
 
-func (s *ConfigSuite) TestUnmarshallMarshall(c *C) {
+func (s *ConfigSuite) TestUnmarshalMarshal(c *C) {
 	input := []byte(`[core]
 	bare = true
 	worktree = foo
diff --git a/config/modules_test.go b/config/modules_test.go
index 8e10d70f1..8ea68e777 100644
--- a/config/modules_test.go
+++ b/config/modules_test.go
@@ -39,7 +39,7 @@ func (s *ModulesSuite) TestValidateMissingName(c *C) {
 	c.Assert(m.Validate(), Equals, ErrModuleEmptyPath)
 }
 
-func (s *ModulesSuite) TestMarshall(c *C) {
+func (s *ModulesSuite) TestMarshal(c *C) {
 	input := []byte(`[submodule "qux"]
 	path = qux
 	url = baz
@@ -54,7 +54,7 @@ func (s *ModulesSuite) TestMarshall(c *C) {
 	c.Assert(output, DeepEquals, input)
 }
 
-func (s *ModulesSuite) TestUnmarshall(c *C) {
+func (s *ModulesSuite) TestUnmarshal(c *C) {
 	input := []byte(`[submodule "qux"]
         path = qux
         url = https://github.com/foo/qux.git
@@ -79,7 +79,7 @@ func (s *ModulesSuite) TestUnmarshall(c *C) {
 	c.Assert(cfg.Submodules["foo/bar"].Branch, Equals, "dev")
 }
 
-func (s *ModulesSuite) TestUnmarshallMarshall(c *C) {
+func (s *ModulesSuite) TestUnmarshalMarshal(c *C) {
 	input := []byte(`[submodule "foo/bar"]
 	path = foo/bar
 	url = https://github.com/foo/bar.git
diff --git a/internal/revision/parser.go b/internal/revision/parser.go
index d2c509e50..61de386b2 100644
--- a/internal/revision/parser.go
+++ b/internal/revision/parser.go
@@ -1,5 +1,5 @@
 // Package revision extracts git revision from string
-// More informations about revision : https://www.kernel.org/pub/software/scm/git/docs/gitrevisions.html
+// More information about revision : https://www.kernel.org/pub/software/scm/git/docs/gitrevisions.html
 package revision
 
 import (
diff --git a/internal/revision/parser_test.go b/internal/revision/parser_test.go
index a58f0ad78..fe4522803 100644
--- a/internal/revision/parser_test.go
+++ b/internal/revision/parser_test.go
@@ -366,7 +366,7 @@ func (s *ParserSuite) TestParseRefWithValidName(c *C) {
 	}
 }
 
-func (s *ParserSuite) TestParseRefWithUnvalidName(c *C) {
+func (s *ParserSuite) TestParseRefWithInvalidName(c *C) {
 	datas := map[string]error{
 		".master":                     &ErrInvalidRevision{`must not start with "."`},
 		"/master":                     &ErrInvalidRevision{`must not start with "/"`},
diff --git a/internal/revision/scanner.go b/internal/revision/scanner.go
index fb5f333f7..c46c21b79 100644
--- a/internal/revision/scanner.go
+++ b/internal/revision/scanner.go
@@ -10,7 +10,7 @@ import (
 // validates it belongs to a rune category
 type runeCategoryValidator func(r rune) bool
 
-// tokenizeExpression aggegates a series of runes matching check predicate into a single
+// tokenizeExpression aggregates a series of runes matching check predicate into a single
 // string and provides given tokenType as token type
 func tokenizeExpression(ch rune, tokenType token, check runeCategoryValidator, r *bufio.Reader) (token, string, error) {
 	var data []rune
diff --git a/object_walker.go b/object_walker.go
index f8b19cdb0..1fdcb36a4 100644
--- a/object_walker.go
+++ b/object_walker.go
@@ -21,7 +21,7 @@ func newObjectWalker(s storage.Storer) *objectWalker {
 	return &objectWalker{s, map[plumbing.Hash]struct{}{}}
 }
 
-// walkAllRefs walks all (hash) refererences from the repo.
+// walkAllRefs walks all (hash) references from the repo.
 func (p *objectWalker) walkAllRefs() error {
 	// Walk over all the references in the repo.
 	it, err := p.Storer.IterReferences()
diff --git a/plumbing/filemode/filemode.go b/plumbing/filemode/filemode.go
index 0994bc4d7..594984f9e 100644
--- a/plumbing/filemode/filemode.go
+++ b/plumbing/filemode/filemode.go
@@ -32,10 +32,10 @@ const (
 	Regular FileMode = 0100644
 	// Deprecated represent non-executable files with the group writable
 	// bit set.  This mode was supported by the first versions of git,
-	// but it has been deprecatred nowadays.  This library uses them
+	// but it has been deprecated nowadays.  This library uses them
 	// internally, so you can read old packfiles, but will treat them as
 	// Regulars when interfacing with the outside world.  This is the
-	// standard git behaviuor.
+	// standard git behaviour.
 	Deprecated FileMode = 0100664
 	// Executable represents executable files.
 	Executable FileMode = 0100755
@@ -152,7 +152,7 @@ func (m FileMode) IsRegular() bool {
 }
 
 // IsFile returns if the FileMode represents that of a file, this is,
-// Regular, Deprecated, Excutable or Link.
+// Regular, Deprecated, Executable or Link.
 func (m FileMode) IsFile() bool {
 	return m == Regular ||
 		m == Deprecated ||
diff --git a/plumbing/filemode/filemode_test.go b/plumbing/filemode/filemode_test.go
index 299c96a7c..8d713f6f0 100644
--- a/plumbing/filemode/filemode_test.go
+++ b/plumbing/filemode/filemode_test.go
@@ -126,7 +126,7 @@ func (s *ModeSuite) TestNewFromOsFileModeExclusive(c *C) {
 }
 
 func (s *ModeSuite) TestNewFromOsFileModeTemporary(c *C) {
-	// temporaty files are ignored
+	// temporary files are ignored
 	fixture{
 		input:    os.FileMode(0644) | os.ModeTemporary, // Trw-r--r--
 		expected: Empty, err: "no equivalent.*",
diff --git a/plumbing/format/idxfile/decoder.go b/plumbing/format/idxfile/decoder.go
index 9e9c1769a..d1a8a2c2b 100644
--- a/plumbing/format/idxfile/decoder.go
+++ b/plumbing/format/idxfile/decoder.go
@@ -12,7 +12,7 @@ import (
 var (
 	// ErrUnsupportedVersion is returned by Decode when the idx file version
 	// is not supported.
-	ErrUnsupportedVersion = errors.New("Unsuported version")
+	ErrUnsupportedVersion = errors.New("Unsupported version")
 	// ErrMalformedIdxFile is returned by Decode when the idx file is corrupted.
 	ErrMalformedIdxFile = errors.New("Malformed IDX file")
 )
diff --git a/plumbing/format/index/decoder_test.go b/plumbing/format/index/decoder_test.go
index 7468ad07c..92d312d50 100644
--- a/plumbing/format/index/decoder_test.go
+++ b/plumbing/format/index/decoder_test.go
@@ -115,7 +115,7 @@ func (s *IndexSuite) TestDecodeMergeConflict(c *C) {
 		{TheirMode, "14f8e368114f561c38e134f6e68ea6fea12d77ed"},
 	}
 
-	// stagged files
+	// staged files
 	for i, e := range idx.Entries[4:7] {
 		c.Assert(e.Stage, Equals, expected[i].Stage)
 		c.Assert(e.CreatedAt.IsZero(), Equals, true)
diff --git a/plumbing/format/index/encoder_test.go b/plumbing/format/index/encoder_test.go
index 78cbbbaef..ea121fc53 100644
--- a/plumbing/format/index/encoder_test.go
+++ b/plumbing/format/index/encoder_test.go
@@ -55,7 +55,7 @@ func (s *IndexSuite) TestEncode(c *C) {
 
 }
 
-func (s *IndexSuite) TestEncodeUnsuportedVersion(c *C) {
+func (s *IndexSuite) TestEncodeUnsupportedVersion(c *C) {
 	idx := &Index{Version: 3}
 
 	buf := bytes.NewBuffer(nil)
@@ -64,7 +64,7 @@ func (s *IndexSuite) TestEncodeUnsuportedVersion(c *C) {
 	c.Assert(err, Equals, ErrUnsupportedVersion)
 }
 
-func (s *IndexSuite) TestEncodeWithIntentToAddUnsuportedVersion(c *C) {
+func (s *IndexSuite) TestEncodeWithIntentToAddUnsupportedVersion(c *C) {
 	idx := &Index{
 		Version: 2,
 		Entries: []*Entry{{IntentToAdd: true}},
@@ -76,7 +76,7 @@ func (s *IndexSuite) TestEncodeWithIntentToAddUnsuportedVersion(c *C) {
 	c.Assert(err, Equals, ErrUnsupportedVersion)
 }
 
-func (s *IndexSuite) TestEncodeWithSkipWorktreeUnsuportedVersion(c *C) {
+func (s *IndexSuite) TestEncodeWithSkipWorktreeUnsupportedVersion(c *C) {
 	idx := &Index{
 		Version: 2,
 		Entries: []*Entry{{SkipWorktree: true}},
diff --git a/plumbing/hash.go b/plumbing/hash.go
index 8e6087789..637a4252a 100644
--- a/plumbing/hash.go
+++ b/plumbing/hash.go
@@ -9,7 +9,7 @@ import (
 	"strconv"
 )
 
-// Hash SHA1 hased content
+// Hash SHA1 hashed content
 type Hash [20]byte
 
 // ZeroHash is Hash with value zero
diff --git a/plumbing/object/commit_stats_test.go b/plumbing/object/commit_stats_test.go
index 2fb3f086f..dc9e4ad38 100644
--- a/plumbing/object/commit_stats_test.go
+++ b/plumbing/object/commit_stats_test.go
@@ -22,7 +22,7 @@ type CommitStatsSuite struct {
 var _ = Suite(&CommitStatsSuite{})
 
 func (s *CommitStatsSuite) TestStats(c *C) {
-	r, hash := s.writeHisotry(c, []byte("foo\n"), []byte("foo\nbar\n"))
+	r, hash := s.writeHistory(c, []byte("foo\n"), []byte("foo\nbar\n"))
 
 	aCommit, err := r.CommitObject(hash)
 	c.Assert(err, IsNil)
@@ -37,7 +37,7 @@ func (s *CommitStatsSuite) TestStats(c *C) {
 }
 
 func (s *CommitStatsSuite) TestStats_RootCommit(c *C) {
-	r, hash := s.writeHisotry(c, []byte("foo\n"))
+	r, hash := s.writeHistory(c, []byte("foo\n"))
 
 	aCommit, err := r.CommitObject(hash)
 	c.Assert(err, IsNil)
@@ -53,7 +53,7 @@ func (s *CommitStatsSuite) TestStats_RootCommit(c *C) {
 }
 
 func (s *CommitStatsSuite) TestStats_WithoutNewLine(c *C) {
-	r, hash := s.writeHisotry(c, []byte("foo\nbar"), []byte("foo\nbar\n"))
+	r, hash := s.writeHistory(c, []byte("foo\nbar"), []byte("foo\nbar\n"))
 
 	aCommit, err := r.CommitObject(hash)
 	c.Assert(err, IsNil)
@@ -67,7 +67,7 @@ func (s *CommitStatsSuite) TestStats_WithoutNewLine(c *C) {
 	c.Assert(fileStats[0].String(), Equals, " foo | 2 +-\n")
 }
 
-func (s *CommitStatsSuite) writeHisotry(c *C, files ...[]byte) (*git.Repository, plumbing.Hash) {
+func (s *CommitStatsSuite) writeHistory(c *C, files ...[]byte) (*git.Repository, plumbing.Hash) {
 	cm := &git.CommitOptions{
 		Author: &object.Signature{Name: "Foo", Email: "foo@example.local", When: time.Now()},
 	}
diff --git a/plumbing/object/commit_walker_bfs_filtered.go b/plumbing/object/commit_walker_bfs_filtered.go
index b12523d48..7b17f156d 100644
--- a/plumbing/object/commit_walker_bfs_filtered.go
+++ b/plumbing/object/commit_walker_bfs_filtered.go
@@ -15,7 +15,7 @@ import (
 // If the commit history can not be traversed, or the Close() method is called,
 // the CommitIter won't return more commits.
 // If no isValid is passed, all ancestors of from commit will be valid.
-// If no isLimit is limmit, all ancestors of all commits will be visited.
+// If no isLimit is limit, all ancestors of all commits will be visited.
 func NewFilterCommitIter(
 	from *Commit,
 	isValid *CommitFilter,
@@ -50,7 +50,7 @@ func NewFilterCommitIter(
 // CommitFilter returns a boolean for the passed Commit
 type CommitFilter func(*Commit) bool
 
-// filterCommitIter implments CommitIter
+// filterCommitIter implements CommitIter
 type filterCommitIter struct {
 	isValid CommitFilter
 	isLimit CommitFilter
diff --git a/plumbing/object/merge_base_test.go b/plumbing/object/merge_base_test.go
index 598539d8a..72c9cd940 100644
--- a/plumbing/object/merge_base_test.go
+++ b/plumbing/object/merge_base_test.go
@@ -48,8 +48,8 @@ candidates           result
  CD1, CD2, M, N       CD1, CD2    M and N are reachable from CD2, so they're not
  C, G, dev, M, N      C, G, dev   M and N are reachable from G, so they're not
  C, D, M, N           C, D        M and N are reachable from C, so they're not
- A, A^, A, N, N^      A, N        A^ and N^ are rechable from A and N
- A^^^, A^, A^^, A, N  A, N        A^^^, A^^ and A^ are rechable from A, so they're not
+ A, A^, A, N, N^      A, N        A^ and N^ are reachable from A and N
+ A^^^, A^, A^^, A, N  A, N        A^^^, A^^ and A^ are reachable from A, so they're not
 
 IsAncestor
 ----------------------------
diff --git a/plumbing/protocol/packp/advrefs_decode.go b/plumbing/protocol/packp/advrefs_decode.go
index 1b4c62c89..80f5b4e66 100644
--- a/plumbing/protocol/packp/advrefs_decode.go
+++ b/plumbing/protocol/packp/advrefs_decode.go
@@ -53,7 +53,7 @@ func (d *advRefsDecoder) Decode(v *AdvRefs) error {
 
 type decoderStateFn func(*advRefsDecoder) decoderStateFn
 
-// fills out the parser stiky error
+// fills out the parser sticky error
 func (d *advRefsDecoder) error(format string, a ...interface{}) {
 	msg := fmt.Sprintf(
 		"pkt-line %d: %s", d.nLine,
@@ -281,7 +281,7 @@ func decodeShallow(p *advRefsDecoder) decoderStateFn {
 	}
 
 	if len(p.line) == 0 {
-		return nil // succesfull parse of the advertised-refs message
+		return nil // successful parse of the advertised-refs message
 	}
 
 	return decodeShallow
diff --git a/plumbing/protocol/packp/capability/list.go b/plumbing/protocol/packp/capability/list.go
index 26a79b6e7..96092112d 100644
--- a/plumbing/protocol/packp/capability/list.go
+++ b/plumbing/protocol/packp/capability/list.go
@@ -14,8 +14,8 @@ var (
 	// ErrArguments is returned if arguments are given with a capabilities that
 	// not supports arguments
 	ErrArguments = errors.New("arguments not allowed")
-	// ErrEmtpyArgument is returned when an empty value is given
-	ErrEmtpyArgument = errors.New("empty argument")
+	// ErrEmptyArgument is returned when an empty value is given
+	ErrEmptyArgument = errors.New("empty argument")
 	// ErrMultipleArguments multiple argument given to a capabilities that not
 	// support it
 	ErrMultipleArguments = errors.New("multiple arguments not allowed")
@@ -119,7 +119,7 @@ func (l *List) Add(c Capability, values ...string) error {
 func (l *List) validateNoEmptyArgs(values []string) error {
 	for _, v := range values {
 		if v == "" {
-			return ErrEmtpyArgument
+			return ErrEmptyArgument
 		}
 	}
 	return nil
diff --git a/plumbing/protocol/packp/capability/list_test.go b/plumbing/protocol/packp/capability/list_test.go
index 82dd63ff3..61b0b13be 100644
--- a/plumbing/protocol/packp/capability/list_test.go
+++ b/plumbing/protocol/packp/capability/list_test.go
@@ -176,7 +176,7 @@ func (s *SuiteCapabilities) TestAddErrArgumentsNotAllowed(c *check.C) {
 func (s *SuiteCapabilities) TestAddErrArguments(c *check.C) {
 	cap := NewList()
 	err := cap.Add(SymRef, "")
-	c.Assert(err, check.Equals, ErrEmtpyArgument)
+	c.Assert(err, check.Equals, ErrEmptyArgument)
 }
 
 func (s *SuiteCapabilities) TestAddErrMultipleArguments(c *check.C) {
diff --git a/plumbing/protocol/packp/ulreq.go b/plumbing/protocol/packp/ulreq.go
index 74109d885..72895e308 100644
--- a/plumbing/protocol/packp/ulreq.go
+++ b/plumbing/protocol/packp/ulreq.go
@@ -68,8 +68,8 @@ func NewUploadRequest() *UploadRequest {
 }
 
 // NewUploadRequestFromCapabilities returns a pointer to a new UploadRequest
-// value, the request capabilities are filled with the most optiomal ones, based
-// on the adv value (advertaised capabilities), the UploadRequest generated it
+// value, the request capabilities are filled with the most optimal ones, based
+// on the adv value (advertised capabilities), the UploadRequest generated it
 // has no wants or shallows and an infinite depth.
 func NewUploadRequestFromCapabilities(adv *capability.List) *UploadRequest {
 	r := NewUploadRequest()
diff --git a/plumbing/protocol/packp/ulreq_encode.go b/plumbing/protocol/packp/ulreq_encode.go
index 89a59868d..dcfeb8329 100644
--- a/plumbing/protocol/packp/ulreq_encode.go
+++ b/plumbing/protocol/packp/ulreq_encode.go
@@ -64,10 +64,10 @@ func (e *ulReqEncoder) encodeFirstWant() stateFn {
 		return nil
 	}
 
-	return e.encodeAditionalWants
+	return e.encodeAdditionalWants
 }
 
-func (e *ulReqEncoder) encodeAditionalWants() stateFn {
+func (e *ulReqEncoder) encodeAdditionalWants() stateFn {
 	last := e.data.Wants[0]
 	for _, w := range e.data.Wants[1:] {
 		if bytes.Equal(last[:], w[:]) {
diff --git a/plumbing/protocol/packp/updreq_decode.go b/plumbing/protocol/packp/updreq_decode.go
index 51e8183d1..59f095f66 100644
--- a/plumbing/protocol/packp/updreq_decode.go
+++ b/plumbing/protocol/packp/updreq_decode.go
@@ -13,9 +13,9 @@ import (
 )
 
 var (
-	shallowLineLength      = len(shallow) + hashSize
-	minCommandLength       = hashSize*2 + 2 + 1
-	minCommandAndCapsLenth = minCommandLength + 1
+	shallowLineLength       = len(shallow) + hashSize
+	minCommandLength        = hashSize*2 + 2 + 1
+	minCommandAndCapsLength = minCommandLength + 1
 )
 
 var (
@@ -46,7 +46,7 @@ func errInvalidShallowLineLength(got int) error {
 func errInvalidCommandCapabilitiesLineLength(got int) error {
 	return errMalformedRequest(fmt.Sprintf(
 		"invalid command and capabilities line length: expected at least %d, got %d",
-		minCommandAndCapsLenth, got))
+		minCommandAndCapsLength, got))
 }
 
 func errInvalidCommandLineLength(got int) error {
@@ -174,7 +174,7 @@ func (d *updReqDecoder) decodeCommandAndCapabilities() error {
 		return errMissingCapabilitiesDelimiter
 	}
 
-	if len(b) < minCommandAndCapsLenth {
+	if len(b) < minCommandAndCapsLength {
 		return errInvalidCommandCapabilitiesLineLength(len(b))
 	}
 
diff --git a/plumbing/protocol/packp/uppackreq.go b/plumbing/protocol/packp/uppackreq.go
index 114413952..831ef8fc5 100644
--- a/plumbing/protocol/packp/uppackreq.go
+++ b/plumbing/protocol/packp/uppackreq.go
@@ -27,8 +27,8 @@ func NewUploadPackRequest() *UploadPackRequest {
 }
 
 // NewUploadPackRequestFromCapabilities creates a new UploadPackRequest and
-// returns a pointer. The request capabilities are filled with the most optiomal
-// ones, based on the adv value (advertaised capabilities), the UploadPackRequest
+// returns a pointer. The request capabilities are filled with the most optimal
+// ones, based on the adv value (advertised capabilities), the UploadPackRequest
 // it has no wants, haves or shallows and an infinite depth
 func NewUploadPackRequestFromCapabilities(adv *capability.List) *UploadPackRequest {
 	ur := NewUploadRequestFromCapabilities(adv)
diff --git a/plumbing/storer/object.go b/plumbing/storer/object.go
index 98d1ec3fe..c84960a65 100644
--- a/plumbing/storer/object.go
+++ b/plumbing/storer/object.go
@@ -141,7 +141,7 @@ func NewEncodedObjectLookupIter(
 // Next returns the next object from the iterator. If the iterator has reached
 // the end it will return io.EOF as an error. If the object can't be found in
 // the object storage, it will return plumbing.ErrObjectNotFound as an error.
-// If the object is retreieved successfully error will be nil.
+// If the object is retrieved successfully error will be nil.
 func (iter *EncodedObjectLookupIter) Next() (plumbing.EncodedObject, error) {
 	if iter.pos >= len(iter.series) {
 		return nil, io.EOF
@@ -187,7 +187,7 @@ func NewEncodedObjectSliceIter(series []plumbing.EncodedObject) *EncodedObjectSl
 }
 
 // Next returns the next object from the iterator. If the iterator has reached
-// the end it will return io.EOF as an error. If the object is retreieved
+// the end it will return io.EOF as an error. If the object is retrieved
 // successfully error will be nil.
 func (iter *EncodedObjectSliceIter) Next() (plumbing.EncodedObject, error) {
 	if len(iter.series) == 0 {
diff --git a/plumbing/transport/http/common.go b/plumbing/transport/http/common.go
index 38e903d45..16ff9304b 100644
--- a/plumbing/transport/http/common.go
+++ b/plumbing/transport/http/common.go
@@ -84,7 +84,7 @@ var DefaultClient = NewClient(nil)
 // Unless a properly initialized client is given, it will fall back into
 // `http.DefaultClient`.
 //
-// Note that for HTTP client cannot distinguist between private repositories and
+// Note that for HTTP client cannot distinguish between private repositories and
 // unexistent repositories on GitHub. So it returns `ErrAuthorizationRequired`
 // for both.
 func NewClient(c *http.Client) transport.Transport {
diff --git a/plumbing/transport/internal/common/common.go b/plumbing/transport/internal/common/common.go
index 00497f3c1..cb1b6daab 100644
--- a/plumbing/transport/internal/common/common.go
+++ b/plumbing/transport/internal/common/common.go
@@ -66,7 +66,7 @@ type Command interface {
 	Close() error
 }
 
-// CommandKiller expands the Command interface, enableing it for being killed.
+// CommandKiller expands the Command interface, enabling it for being killed.
 type CommandKiller interface {
 	// Kill and close the session whatever the state it is. It will block until
 	// the command is terminated.
diff --git a/plumbing/transport/internal/common/common_test.go b/plumbing/transport/internal/common/common_test.go
index b2f035d71..c60ef3b05 100644
--- a/plumbing/transport/internal/common/common_test.go
+++ b/plumbing/transport/internal/common/common_test.go
@@ -13,7 +13,7 @@ type CommonSuite struct{}
 
 var _ = Suite(&CommonSuite{})
 
-func (s *CommonSuite) TestIsRepoNotFoundErrorForUnknowSource(c *C) {
+func (s *CommonSuite) TestIsRepoNotFoundErrorForUnknownSource(c *C) {
 	msg := "unknown system is complaining of something very sad :("
 
 	isRepoNotFound := isRepoNotFoundError(msg)
diff --git a/storage/memory/storage.go b/storage/memory/storage.go
index f240f2a1f..fee826659 100644
--- a/storage/memory/storage.go
+++ b/storage/memory/storage.go
@@ -15,7 +15,7 @@ import (
 var ErrUnsupportedObjectType = fmt.Errorf("unsupported object type")
 
 // Storage is an implementation of git.Storer that stores data on memory, being
-// ephemeral. The use of this storage should be done in controlled envoriments,
+// ephemeral. The use of this storage should be done in controlled environments,
 // since the representation in memory of some repository can fill the machine
 // memory. in the other hand this storage has the best performance.
 type Storage struct {
diff --git a/utils/merkletrie/difftree.go b/utils/merkletrie/difftree.go
index d57ed1333..77ba5a8e4 100644
--- a/utils/merkletrie/difftree.go
+++ b/utils/merkletrie/difftree.go
@@ -8,7 +8,7 @@ package merkletrie
 // type defined in this same package; we will iterate over both
 // trees at the same time, while comparing the current noders in
 // each iterator.  Depending on how they differ we will output the
-// corresponding chages and move the iterators further over both
+// corresponding changes and move the iterators further over both
 // trees.
 //
 // The table bellow show all the possible comparison results, along
@@ -69,7 +69,7 @@ package merkletrie
 //
 // ### C. To was created: 01, 02, 03, 04, 05, 06
 //   - check: `DifferentName() && ToBeforeFrom()`
-//   - action: inserRecursively(to)
+//   - action: insertRecursively(to)
 //   - advance: `ToNext()`
 //
 // ### D. From was deleted: 10, 20, 30, 40, 50, 60
@@ -131,13 +131,13 @@ package merkletrie
 //   - action: `DeleteDir(from); InsertFile(to)`
 //   - advance: `FromNext(); ToNext()`
 //
-// ### J. file with contents to dir with contetns: 25, 26, 35, 36
+// ### J. file with contents to dir with contents: 25, 26, 35, 36
 //   - check: `SameName() && DifferentHash() && FromIsFile() &&
 //             FromIsNotEmpty() && ToIsDir() && ToIsNotEmpty()`
 //   - action: `DeleteFile(from); InsertDirRecursively(to)`
 //   - advance: `FromNext(); ToNext()`
 //
-// ### J'. dir with contetns to file with contents: 52, 62, 53, 63
+// ### J'. dir with contents to file with contents: 52, 62, 53, 63
 //   - check: `SameName() && DifferentHash() && FromIsDir() &&
 //             FromIsNotEmpty() && ToIsFile() && ToIsNotEmpty()`
 //   - action: `DeleteDirRecursively(from); InsertFile(to)`
@@ -216,7 +216,7 @@ package merkletrie
 // 1 0 1 0 1 0 |    a() |  a<1>  | I' |  f  | delete(from); insert(to); NN
 // 1 0 1 0 1 1 |    a() |   a<>  | F' |  f  | delete(from); insert(to); NN
 // 1 0 1 1 0 0 | a(...) | a(;;;) | L  |  g  | nothing; SS
-// 1 0 1 1 0 1 | a(...) |    a() | K' |  h  | deleteChidren(from); NN
+// 1 0 1 1 0 1 | a(...) |    a() | K' |  h  | deleteChildren(from); NN
 // 1 0 1 1 1 0 |    a() | a(...) | K  |  i  | insertChildren(to); NN
 // 1 0 1 1 1 1 |  ----  |  ----  |    |     |
 // 1 1 0 0 0 0 |  a<1>  |  a<1>  | B  |  b  | nothing; NN
diff --git a/utils/merkletrie/internal/frame/frame.go b/utils/merkletrie/internal/frame/frame.go
index a0b042ee6..77a3de4f9 100644
--- a/utils/merkletrie/internal/frame/frame.go
+++ b/utils/merkletrie/internal/frame/frame.go
@@ -38,7 +38,7 @@ func New(n noder.Noder) (*Frame, error) {
 }
 
 // String returns the quoted names of the noders in the frame sorted in
-// alphabeticall order by name, surrounded by square brackets and
+// alphabetical order by name, surrounded by square brackets and
 // separated by comas.
 //
 // Examples:
@@ -61,7 +61,7 @@ func (f *Frame) String() string {
 }
 
 // First returns, but dont extract, the noder with the alphabetically
-// smaller name in the frame and true if the frame was not empy.
+// smaller name in the frame and true if the frame was not empty.
 // Otherwise it returns nil and false.
 func (f *Frame) First() (noder.Noder, bool) {
 	if f.Len() == 0 {
diff --git a/utils/merkletrie/internal/fsnoder/doc.go b/utils/merkletrie/internal/fsnoder/doc.go
index 3f55b5f7d..c79ac5922 100644
--- a/utils/merkletrie/internal/fsnoder/doc.go
+++ b/utils/merkletrie/internal/fsnoder/doc.go
@@ -30,7 +30,7 @@ Directories are expressed as:
 
 - its elements between parents, separated with spaces, in any order.
 
-- (optionally) the root directory can be unnamed, by skiping its name.
+- (optionally) the root directory can be unnamed, by skipping its name.
 
 Examples:
 
diff --git a/utils/merkletrie/internal/fsnoder/file.go b/utils/merkletrie/internal/fsnoder/file.go
index c975a6048..686a675aa 100644
--- a/utils/merkletrie/internal/fsnoder/file.go
+++ b/utils/merkletrie/internal/fsnoder/file.go
@@ -60,7 +60,7 @@ const (
 	fileEndMark   = '>'
 )
 
-// String returns a string formated as: name<contents>.
+// String returns a string formatted as: name<contents>.
 func (f *file) String() string {
 	var buf bytes.Buffer
 	buf.WriteString(f.name)
diff --git a/utils/merkletrie/internal/fsnoder/new_test.go b/utils/merkletrie/internal/fsnoder/new_test.go
index 805772f97..a2c474afd 100644
--- a/utils/merkletrie/internal/fsnoder/new_test.go
+++ b/utils/merkletrie/internal/fsnoder/new_test.go
@@ -176,7 +176,7 @@ func (s *FSNoderSuite) TestEmptyDir(c *C) {
 	check(c, input, expected)
 }
 
-func (s *FSNoderSuite) TestDirWithEmtpyFile(c *C) {
+func (s *FSNoderSuite) TestDirWithEmptyFile(c *C) {
 	input := "(A(a<>))"
 
 	a, err := newFile("a", "")
@@ -189,7 +189,7 @@ func (s *FSNoderSuite) TestDirWithEmtpyFile(c *C) {
 	check(c, input, expected)
 }
 
-func (s *FSNoderSuite) TestDirWithEmtpyFileSameName(c *C) {
+func (s *FSNoderSuite) TestDirWithEmptyFileSameName(c *C) {
 	input := "(A(A<>))"
 
 	f, err := newFile("A", "")
diff --git a/utils/merkletrie/iter_test.go b/utils/merkletrie/iter_test.go
index b334cf108..3b240434e 100644
--- a/utils/merkletrie/iter_test.go
+++ b/utils/merkletrie/iter_test.go
@@ -95,7 +95,7 @@ func (t test) run(c *C, iter *merkletrie.Iter,
 }
 
 // A testsCollection value represents a tree and a collection of tests
-// we want to perfrom on iterators of that tree.
+// we want to perform on iterators of that tree.
 //
 // Example:
 //