BRS Physiology Cases & Problems is a "review" book that is more suitable for classroom use during your Physio course and you might even be able to use it during your Path course using both BRS Path & Physio (to learn pathophysiology), but I don't think this book is enough or high-yield for the boards. However, the blue Physio book is a MUST for Step 1 prep, know this book like that back of your hand, you can get through the entire review book in 2-3 days if you're strong in Physiology, if not, add a few more days to your physio schedule and take the time to master each concept presented in this book (i.e., BRS Physiology not the Cases & Problems)