Master the Boards USMLE Step 2 ck review book. The book is in very good condition. Great review book for Step 2. Master the Boards USMLE Step 2 CK by Conrad Fischer is a comprehensive textbook designed for medical students preparing for the USMLE Step 2 CK exam. Published by Kaplan Publishing in 2017, this revised edition offers in-depth coverage of clinical medicine, professional topics, and general review. With 752 pages and a trade paperback format, this study aid is perfect for those looking to conquer their exams and excel in their medical career. Written in English and measuring 10.9 inches in length, 8.4 inches in width, and 0.9 inches in height, this book is a valuable resource for any aspiring physician.