[.ca] The Official Guide for GMAT Review, 11th Edition (ISBN 140514176X)

Better than GMAT 10th edition!:
At first I was a bit skeptic about this book, but it actually ended up to be the most useful tool I worked with for my GMAT preparation. Even though there is some repetition of items and questions that one can find in the Official Guide for GMAT 10th edition, the explanations are great! One can really see the reasoning behind a problem, thing that was barely possible in the 10th edition. Also, the problems are close to an actual GMAT test (speaking by experience!).

This book is a must!!:
The Official Guide is a must when studying for the GMAT. This is the only book that contains actual GMAT questions, retired though they might be. I took the GMAT recently and saw a number of questions in the verbal and math sections that were similarly structured to those in the book. The answer explanations are not that great, but do give you a direction from which an in depth understanding is possible. Take all of the questions in this book seriously, especially the hard ones and you will do well on the GMAT. Do the questions after you have thoroughly mastered the concepts tested on the GMAT in order to evaluate where you stand. Finally, don't use this book to learn the concepts as the overview provided is very rudimentary.