Based on student review for gmat preparation books, i compiled following popular list of gmat books which are offering high sucess rates--
1. Kaplan GMAT 800
Written by Kaplan, a recognized leader in college test prep and admissions services, this book is an advanced guide for ambitious students who dream of high GMAT scores. The hundreds of very difficult practice questions (with detailed answers) cover math tactics, critical reasoning, and data sufficiency problems.
2. Cracking the GMAT
Written by the Princeton Review, this book is all about strategies and techniques that will help you score higher on the exam. It also contains 200 practice questions (with answers and explanations) and a CD-Rom with four full-length practice tests.
3. Master the GMAT
Written by GMAT test - preparation instructors and experts, McGraw- Hill's GMAT offers topic reviews, GMAT test strategies, practice tests, and more. The guide makes an excellent foundation for exam preparation.
so what you are waiting for, start preparing for GMAT!