diff --git a/NAMESPACE b/NAMESPACE
index 94629e0..aa0c07d 100644
--- a/NAMESPACE
+++ b/NAMESPACE
@@ -1,5 +1,6 @@
 # Generated by roxygen2: do not edit by hand
 
+export(build_current_book_part)
 export(find_stics_names)
 export(gen_bibtex_file)
 export(generate_book)
diff --git a/R/generate_book.R b/R/generate_book.R
index 198da02..ca98498 100644
--- a/R/generate_book.R
+++ b/R/generate_book.R
@@ -2,8 +2,9 @@
 #'
 #' @param input_rmd Chapter Rmd file name (optional)
 #' @param book_pkg_dir Book package directory path (optional, default: current directory)
-#' @param output_format String defining the type of document to build
-#' (optional, default: "bookdown::html_document2")
+#' @param output_format String defining the type of document to build (optional);
+#' among "bookdown::pdf_document2", "bookdown::pdf_document2",
+#' "bookdown::gitbook" (default)
 #' @param params A list containing parameters to pass to the Rmd
 #' document to parameterize the output or overload existing params in the
 #' document
@@ -16,6 +17,8 @@
 #' @return A success status of the document generation
 #' @export
 #'
+#' @seealso \code{\link{build_current_book_part}}
+#'
 #' @examples
 #' \dontrun{
 #' generate_book()
@@ -123,6 +126,26 @@ build_book_part <- function( file_name = NULL, other_names = c("index", "Appendi
 }
 
 
+#' Generating a 'bookdown::gitbook' document from the current
+#' edited bookdown chapter (Rmd)
+#'
+#' @description Generating an output document from the open Rmd file
+#' in the RStudio editor without specifying neither the file name nor
+#' the output format ('bookdown::gitbook')
+#'
+#' @seealso \code{\link{generate_book}} for specifying Rmd files list, and output
+#' format
+#'
+# @return
+#' @export
+#'
+#' @examples
+#' \dontrun{
+#'
+#' build_current_book_part()
+#'
+#' }
+#'
 build_current_book_part <- function() {
   build_book_part()
 }
diff --git a/man/build_current_book_part.Rd b/man/build_current_book_part.Rd
new file mode 100644
index 0000000..424da02
--- /dev/null
+++ b/man/build_current_book_part.Rd
@@ -0,0 +1,26 @@
+% Generated by roxygen2: do not edit by hand
+% Please edit documentation in R/generate_book.R
+\name{build_current_book_part}
+\alias{build_current_book_part}
+\title{Generating a 'bookdown::gitbook' document from the current
+edited bookdown chapter (Rmd)}
+\usage{
+build_current_book_part()
+}
+\description{
+Generating an output document from the open Rmd file
+in the RStudio editor without specifying neither the file name nor
+the output format ('bookdown::gitbook')
+}
+\examples{
+\dontrun{
+
+build_current_book_part()
+
+}
+
+}
+\seealso{
+\code{\link{generate_book}} for specifying Rmd files list, and output
+format
+}
diff --git a/man/generate_book.Rd b/man/generate_book.Rd
index bbe8d81..12d6356 100644
--- a/man/generate_book.Rd
+++ b/man/generate_book.Rd
@@ -16,8 +16,9 @@ generate_book(
 
 \item{book_pkg_dir}{Book package directory path (optional, default: current directory)}
 
-\item{output_format}{String defining the type of document to build
-(optional, default: "bookdown::html_document2")}
+\item{output_format}{String defining the type of document to build (optional);
+among "bookdown::pdf_document2", "bookdown::pdf_document2",
+"bookdown::gitbook" (default)}
 
 \item{params}{A list containing parameters to pass to the Rmd
 document to parameterize the output or overload existing params in the
@@ -44,4 +45,7 @@ generate_book(input_rmd = "07-chap.Rmd", output_format = 'bookdown::pdf_document
 
 
 
+}
+\seealso{
+\code{\link{build_current_book_part}}
 }