Blueprints Obstetrics and Gynecology sixth edition by Tamara L. Callahan and Aaron B. Caughey.  This book provides students with a concise review of content for their OBGYN rotations and the Boards. Each chapter is brief and includes pedagogical features such as bolded keywords, tables, figures, and Key Points. New features in this edition include an image bank and the Boards section, which presents 4 clinical vignettes with 3-to-5 sequential item set-style questions at the end of each chapter. Additionally, 100 bonus board-format questions with answers and rationales appear at the end of the book; another 50 bonus questions are provided online.   ( written notes inside)