Review of Powerscore's LSAT Logical Reasoning Bible

Pros:
1. Difficulty - The size, additional topics, and complexity of some of these extra chapters definitely make this book much harder than the Powerscore CR Bible.
2. Extra Topics - While the extra chapters will specifically cater to the LSAT, reading them can strengthen your overall CR skills and allow you to see these questions from a different, and perhaps better, angle.
3. Discussion - This book does a fine job at explaining each section and reinforcing the material with practice exercises and real test questions.
4. Product Quality - Although a minor issue, the pages and book cover are of good quality.

Cons:
1. Intended Use - This is an LSAT guide, so some parts of the book are unnecessary and distracting.
2. Size - Totaling 542 pages, this book is absolutely massive and heavy.
3. Price - Prices range from 40 to 65 dollars. That's expensive.
4. Exhaustion - The amount of time and energy it takes to fully absorb this book's contents will exhaust you. The conditional reasoning section is particularly frustrating.

Overall Assessment:
This is a very, very large and time consuming book. For most people, this guide is simply too big and expensive to justify a place in their GMAT library. Besides, Powerscore already offers a CR guide specifically geared toward the GMAT. However, a number of high verbal scorers have used the LR book and highly recommend it. There's certainly something special to this book, and it should be emphasized that this is the most powerful guide for mastering CR and LR concepts.

If you are unable to commit to the LR guide, then this will not put you at a disadvantage. Simply use the Powerscore CR guide and you should be perfectly fine. However, if you're aiming for a very high verbal score, and have the energy, time, and money to do so, then the Powerscore LR Bible is probably the right choice for you. This book goes beyond the GMAT and will give you an advantage on test day.