GMAT Self-Study Books
Get everything you need to prepare for the GMAT on your own with PowerScore's GMAT publications.

GMAT Bibles
Business School bound? The PowerScore GMAT Bibles provide a comprehensive system for effectively attacking each concept found in the Verbal section. Improve your accuracy in answering questions and your speed as well.
Individual Bibles
Each GMAT Bible provides a comprehensive, concept-specific system of skills and techniques to make sure you’re ready for anything you could potentially see during the Verbal section of the GMAT on test day.
About the Authors
David Killoran
Dave Killoran, is a graduate of Duke University, is an expert in test preparation with over 25 years of teaching experience and a 99th percentile score on the official LSAT. In addition to having written PowerScore's renowned LSAT Bible Series, and many other popular publications, Dave has overseen the preparation of thousands of students, founded two national LSAT preparation companies, and currently co-hosts the popular PowerScore LSAT PodCast. Follow him on X @DaveKilloran for real-time advice and news pertaining to the law school admissions process.
This book has helped out my score on the reading comprehension sections quite a bit! On my first (cold test), I was writing 13-14 correct per section, after about two months of using this book (and taking practice tests), I'm consistently writing 20-22 correct per section. This book helped me figure out what the LSAT looks for, as well as tips to handling the different types of questions.