The fifth edition of BRS Embryology has afforded me the opportunity to further finetune a work that was already a highly rated course review book as well as an excellent review for the USMLE Step 1. This fine-tuning is a result of the many students who have contacted me by e-mail to point out errors and give suggestions for improvement. I appreciate this student feedback very much. In the fifth edition, I have placed clinical images closer to the corresponding text to make reviewing more efficient. As in the previous edition, the Comprehensive Examination at the end of the book reflects the USMLE Step 1 format. I hope.
