CISSP (ISC)2 Certified Information Systems Security Professional Official Study Guide. Gibson Darril

Ace the GMAT with the only official study guide from the creators of the exam With 25% brand new content, The Official Guide for the GMAT Review 2016 delivers more than 900 retired questions from the official GMAT exam, complete with answer explanations and a 100-question diagnostic exam to help focus your test preparation efforts. Also includes exclusive online resources: Build your own practice tests with the exclusive online question bank of 900 questions, with answers and explanations, math review, essay topics and a diagnostic test, as well 50 integrated reasoning questions Exclusive access to videos with insight and tips on GMAT preparation from previous test-takers and from the officials who create the test