Kaplan GMAT 800, 2007-08 ed
ISBN: 9781419550966

"GMAT 800 "offers high-achieving students the toughest practice questions, hardest concepts, and strongest strategies to help them prepare for the GMAT.
The guide includes:
Hundreds of the toughest practice questions with strategic explanations
Tips for getting the questions right on test day
Focused guidelines for tackling each question type
Proven strategies for getting a perfect score
Special step-by-step methods for special question types

Kaplan GMAT Premier Program, 2009 ed
ISBN: 9781419552045
* NEW! Essential math basics review section with practice drills
* 6 full-length practice tests (1 in the book, 1 online, 4 on the CD-ROM)
* Diagnostic test to target areas for score improvement
* Proven score-raising strategies
* Hundreds of additional practice questions
* Detailed answer explanations
* Personalized online progress report that adapts to a student's goals and schedule