The Official Guide is your must-have study guide that features Verbal, Quantitative, and Integrated Reasoning questions types. New this year is a mobil app that allows access to the online test bank to practice-on-the go. This online question bank allows you to create practice tests from the over 900 retired GMAC questions featured in the book, as well as exclusive videos from real test takers and GMAC staff who share insight and tips on GMAT preparation. The Official Guide for GMAT Review 2020 features 900 practice questions of all types with answers and explanations, math review, essay topics, and a diagnostic test. In addition, you have access to an online study companion that includes the same practice questions and Integrated Reasoning questions and answer explanations; 100-question diagnostic exam to help focus your test preparation efforts.