This is the only official study guide from the creators of the test and delivers more than 900 retired GMAT questions and answer explanations and a 100- question diagnostic exam to help focus your test preparation efforts. NEW to The Official Guide for GMAT Review 2015: Access to the online Question Bank including more than 900 practice questions of all types with answers and explanations, math review, essay topics, and a diagnostic test, as well as access to 50 online integrated reasoning questions. Exclusive access to videos from real test takers and GMAC staff who share insight and tips on GMAT preparation.