diff --git a/lib/card.rb b/lib/card.rb
index e69de29bb..7af002805 100644
--- a/lib/card.rb
+++ b/lib/card.rb
@@ -0,0 +1,10 @@
+class Card
+    attr_reader :question,
+                :answer,
+                :category
+    def initialize(question,answer,category)
+        @question=question
+        @answer=answer
+        @category=category
+    end
+end
\ No newline at end of file
diff --git a/lib/deck.rb b/lib/deck.rb
new file mode 100644
index 000000000..dc256d8a7
--- /dev/null
+++ b/lib/deck.rb
@@ -0,0 +1,18 @@
+class Deck
+    attr_reader :cards
+
+    def initialize(cards)
+        @cards=cards
+    end
+
+    def count
+        @cards.count
+    end
+
+    def cards_in_category(cat)
+        cards.filter_map do |card|
+            card if card.category == cat
+        end
+    end
+    
+end
\ No newline at end of file
diff --git a/lib/flashcard_runner.rb b/lib/flashcard_runner.rb
new file mode 100644
index 000000000..d62b4ba6a
--- /dev/null
+++ b/lib/flashcard_runner.rb
@@ -0,0 +1,13 @@
+require './lib/turn'
+require './lib/card'
+require './lib/deck'
+require './lib/round'
+
+card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+card_4 = Card.new("Lisa Vanderpump starred on what reality show before getting her own show, Vanderpump Rules?(Acroynm please)", "Rhobh", "Pop Culture")
+
+deck = Deck.new([card_1, card_2, card_3,card_4])
+round = Round.new(deck)
+round.start
diff --git a/lib/round.rb b/lib/round.rb
new file mode 100644
index 000000000..2eaec7b86
--- /dev/null
+++ b/lib/round.rb
@@ -0,0 +1,81 @@
+class Round
+    attr_reader :deck,
+                :turns,
+                :number_correct,
+                :percent_correct,
+                :unique_categories
+
+
+    def initialize(deck)
+        @deck=deck
+        @turns=[]
+        @number_correct=0
+        @percent_correct=0
+        @unique_categories=[]
+        
+    end
+
+    def current_card
+        @deck.cards[@turns.count]
+    end
+
+    def take_turn(guess)
+        new_turn = Turn.new(guess,current_card)
+        if new_turn.correct? == true
+            @number_correct +=1
+        end
+        @turns << new_turn
+        @percent_correct= ((@number_correct).to_f/ @turns.count)*100
+        new_turn
+    end
+
+    def number_correct_by_category(cat)
+        num_correct_by_cat=0
+        @turns.each do |turn|
+            if turn.card.category == cat
+                if turn.guess == turn.card.answer
+                    num_correct_by_cat +=1
+                end
+            end
+        end
+        num_correct_by_cat
+    end
+
+    def percent_correct_by_category(cat)
+        total_by_cat=0
+        @turns.each do |turn|
+            if turn.card.category == cat
+                total_by_cat +=1
+            end
+        end
+        (((number_correct_by_category(cat)).to_f)/total_by_cat)*100
+    end
+
+    def get_unique_categories
+        deck.cards.each do |card|
+            @unique_categories << card.category
+        end
+        @unique_categories.uniq!
+    end
+
+    def start
+        puts "Welcome! You're playing with #{deck.count} cards"
+        puts "------------------------------------------------"
+
+        deck.cards.each do |card|
+        puts "This is card number #{deck.cards.index(card)+1} out of #{deck.count}. "
+        puts "Question: #{card.question}"
+        guess = gets.chomp
+        take_turn(guess)
+        puts turns.last.feedback
+        end
+
+        puts "**** Game over! ****"
+        puts "You had #{number_correct} out of #{turns.count} for a total score of #{percent_correct}%."
+
+        get_unique_categories
+        @unique_categories.each do |category|
+            puts "#{category} - #{(percent_correct_by_category(category)).round}% correct." 
+        end
+    end
+end
\ No newline at end of file
diff --git a/lib/turn.rb b/lib/turn.rb
new file mode 100644
index 000000000..568646556
--- /dev/null
+++ b/lib/turn.rb
@@ -0,0 +1,21 @@
+class Turn
+    attr_reader :guess,
+                :card
+
+    def initialize(guess,card)
+        @guess = guess.capitalize
+        @card = card
+    end
+
+    def correct?
+        @guess == @card.answer
+    end
+
+    def feedback
+        if @guess == @card.answer
+            "Correct!"
+        else
+            "Incorrect."
+        end
+    end
+end
\ No newline at end of file
diff --git a/spec/card_spec.rb b/spec/card_spec.rb
index 84a45a7a6..9ae3fad89 100644
--- a/spec/card_spec.rb
+++ b/spec/card_spec.rb
@@ -3,25 +3,13 @@
 RSpec.describe Card do
   it 'exists' do
     card = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
-
     expect(card).to be_instance_of(Card)
   end
 
-  it 'has a question' do
+  it 'has a question, answer, and category' do
     card = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
-
     expect(card.question).to eq("What is the capital of Alaska?")
-  end
-
-  it 'has an answer' do
-    card = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
-
     expect(card.answer).to eq("Juneau")
-  end
-
-  it 'has a category' do
-    card = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
-
     expect(card.category).to eq(:Geography)
   end
 end
diff --git a/spec/deck_spec.rb b/spec/deck_spec.rb
new file mode 100644
index 000000000..ed3675aab
--- /dev/null
+++ b/spec/deck_spec.rb
@@ -0,0 +1,34 @@
+require './lib/card'
+require './lib/deck'
+
+RSpec.describe Deck do
+    it 'exists' do
+      card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+      card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+      card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+      cards = [card_1, card_2, card_3]
+      deck = Deck.new(cards)
+      expect(deck).to be_instance_of(Deck)
+    end
+
+    it 'can return the count of cards in the deck' do
+        card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+        card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+        card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+        cards = [card_1, card_2, card_3]
+        deck = Deck.new(cards)  
+        expect(deck.count).to eq(3)
+    end
+
+    it 'can give card info by category' do
+        card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+        card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+        card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+        cards = [card_1, card_2, card_3]
+        deck = Deck.new(cards) 
+        expect(deck.cards_in_category(:STEM).count).to eq(2)
+        expect(deck.cards_in_category(:Geography).count).to eq(1)
+        expect(deck.cards_in_category("Pop Culture").count).to eq(0)
+    end
+
+end
\ No newline at end of file
diff --git a/spec/round_spec.rb b/spec/round_spec.rb
new file mode 100644
index 000000000..4985e9f6b
--- /dev/null
+++ b/spec/round_spec.rb
@@ -0,0 +1,120 @@
+require './lib/turn'
+require './lib/card'
+require './lib/deck'
+require './lib/round'
+
+RSpec.describe Round do
+    it 'exists' do
+      card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+      card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+      card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+      deck = Deck.new([card_1, card_2, card_3])
+      round = Round.new(deck)
+      expect(round).to be_instance_of(Round)
+    end
+    
+    it 'has a deck' do
+        card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+        card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+        card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+        deck = Deck.new([card_1, card_2, card_3])
+        round = Round.new(deck)
+        expect(round.deck).to eq(deck)
+    end
+
+    it 'has a turn array and can take turn' do
+        card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+        card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+        card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+        deck = Deck.new([card_1, card_2, card_3])
+        round = Round.new(deck)
+        expect(round.turns).to eq([])
+
+        new_turn=round.take_turn("Juneau")
+        expect(round.turns.count).to eq(1)
+    end
+
+    it 'can display current card in the deck' do
+        card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+        card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+        card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+        deck = Deck.new([card_1, card_2, card_3])
+        round = Round.new(deck)
+        expect(round.current_card).to eq(card_1)
+
+        new_turn=round.take_turn("Juneau")
+        expect(round.current_card).to eq(card_2)
+    end
+
+    it 'can make a new Turn instance' do
+        card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+        card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+        card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+        deck = Deck.new([card_1, card_2, card_3])
+        round = Round.new(deck)
+        new_turn=round.take_turn("Juneau")
+        expect(new_turn.class).to eq(Turn)
+    end
+
+    it 'lets you know how many questions are correct'do
+        card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+        card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+        card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+        deck = Deck.new([card_1, card_2, card_3])
+        round = Round.new(deck)
+        new_turn=round.take_turn("Juneau")
+        expect(round.number_correct).to eq(1)
+        expect(round.current_card).to eq(card_2)
+    end
+
+    it 'moves on to turn 2'do
+    card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+    card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+    card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+    deck = Deck.new([card_1, card_2, card_3])
+    round = Round.new(deck)
+    new_turn=round.take_turn("Juneau")
+    round.take_turn("Venus")
+    expect(round.turns.count).to eq(2)
+    end
+
+    it 'can give feedback' do
+        card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+        card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+        card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+        deck = Deck.new([card_1, card_2, card_3])
+        round = Round.new(deck)
+        new_turn=round.take_turn("Juneau")
+        expect(round.turns.last.feedback).to eq("Correct!")
+
+        round.take_turn("Venus")
+        expect(round.turns.last.feedback).to eq("Incorrect.")
+    end
+
+    it 'provides number correct and percent by category' do
+        card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+        card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+        card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+        deck = Deck.new([card_1, card_2, card_3])
+        round = Round.new(deck)
+        new_turn=round.take_turn("Juneau")
+        round.take_turn("Venus")
+        expect(round.number_correct_by_category(:Geography)).to eq(1)
+        expect(round.number_correct_by_category(:STEM)).to eq(0)
+        expect(round.percent_correct).to eq(50.0)
+        expect(round.percent_correct_by_category(:Geography)).to eq(100.0)
+        expect(round.percent_correct_by_category(:STEM)).to eq(0.0)
+
+        round.take_turn("North north west")
+        expect(round.percent_correct_by_category(:STEM)).to eq(50.0)
+    end
+
+    it 'creates array of unique categories' do
+        card_1 = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+        card_2 = Card.new("The Viking spacecraft sent back to Earth photographs and reports about the surface of which planet?", "Mars", :STEM)
+        card_3 = Card.new("Describe in words the exact direction that is 697.5° clockwise from due north?", "North north west", :STEM)
+        deck = Deck.new([card_1, card_2, card_3])
+        round = Round.new(deck)
+        expect(round.get_unique_categories).to eq([:Geography, :STEM])
+    end
+end
\ No newline at end of file
diff --git a/spec/turn_spec.rb b/spec/turn_spec.rb
new file mode 100644
index 000000000..2cc365407
--- /dev/null
+++ b/spec/turn_spec.rb
@@ -0,0 +1,40 @@
+require './lib/turn'
+require './lib/card'
+
+RSpec.describe Turn do
+  it 'exists' do
+    card = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+    turn = Turn.new("Juneau",card)
+    expect(turn).to be_instance_of(Turn)
+  end
+
+  it 'has a guess and card' do
+    card = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+    turn = Turn.new("Juneau", card)
+    expect(turn.guess). to eq("Juneau")
+    expect(turn.card). to eq(card)
+  end
+
+  it 'checks if the guess is correct' do
+    card = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+    turn = Turn.new("JUNEAU", card)
+    expect(turn.correct?). to eq(true)
+  end
+
+  it 'checks if the guess is incorrect' do
+    card = Card.new("Which planet is closest to the sun?", "Mercury", :STEM)
+    turn = Turn.new("Saturn", card)
+    expect(turn.correct?). to eq(false)
+  end
+  
+  it 'provides feedback on the test' do
+    card = Card.new("What is the capital of Alaska?", "Juneau", :Geography)
+    turn = Turn.new("Juneau", card)
+    expect(turn.feedback). to eq("Correct!")
+
+    card = Card.new("Which planet is closest to the sun?", "Mercury", :STEM)
+    turn = Turn.new("Saturn", card)
+    expect(turn.feedback). to eq("Incorrect.")
+  end
+
+end