Ratings & Reviews
"Of all the study materials I have seen (Manhattan, GMAT, Veritas, Knewton, and Princeton Review) you have the best tactics for tackling CR problems. I have literally gone from taking almost 3 to 4 minutes on each CR problem when I started to now around 1.5 minutes each, sometimes faster than sentence correction problems. So, thank you!"
"The PowerScore GMAT Critical Reasoning Bible is one of the best textbooks I have ever read in my life and I am extremely grateful that you have created it. You have simplified and organized this content a way that would enable even a lay person to build an excellent foundation."
"This book is seriously amazing! Was plateauing on the Verbal section of the GMAT at the 89 percentile, and this book helped increase my Verbal score by 7 percentage points."
David Killoran
Dave Killoran, 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.