This book is required for the course.
From the back cover: Take this book home and you will seize the opportunity to use the information in this book to educate yourself about new ways to care for laboring women.
Note on edition: The doula training program currently uses the 2nd edition of the book. Plans are underway to implement changes to the course to reflect changes made in the 3rd edition. This will probably be implemented by November 2014. We would recommend purchasing the 3rd edition, but you will not be penalized for using the older book in the course.