Mosby S Rn Prep Guide - Saunder’s Comprehensive Review for the NCLEX-RN is a large volume but our recommended text for the NCLEX review. Packed full of information and questions, Saunder’s Comprehensive Review for the NCLEX-RN provides densely focused information and images to help with general studying and for the NCLEX in particular.. Choosing the best NCLEX review course is the single most important decision you will make on your journey towards becoming a nurse. You will be spending many hours studying, so it’s crucial to find the study guide that best fits your learning style and background.. The Association of periOperative Registered Nurses (AORN) is the leader in advocating for excellence in perioperative practice and healthcare..