Was Never Good
I bought Testking free GRE practice to study for the GRE after being out of college for 11 years. I was never good at math, and never liked it. With this book I had trememdous success teaching myself, and here's the kicker - I even enjoyed it at times! it is absolutely invaluable. If it taught me only how to solve one type of word problem it would have been worth that much, but it taught me much, much more. Lots of practice problems and exercises. I did significantly better on the GRE than I EVER thought possible.
Lindsey"

Plenty Of Practice
This book helped me a lot with GRE prep! It provides you with a thorough review of most of the concepts you'll encounter on free gre practice tests, and there are plenty of practice questions and quizzes with detailed explanations of the answers. Everyone in the other reviews has said that you need a month to get through it, but I procrastinated and got through the entire thing in the 2-3 days before my exam. One thing I love about this book is that it's about the size of a paperback.Thanks to Testking again
Henry"

Improve My Scores
I have always had a lot of trouble with math. But, with Testking free GRE practice I was able to improve my score on the GRE Quantitative section by 110 points. It breaks down the concepts you need to know in the best way possible. The only caveat is that it does not cover the basic statistics which may come up on the current GREs. I purchased to study for the GRE Math, but, by far, the most useful! My score went up 30 points and was able to test out of the noncredit class. This is an awesome tool for anyone.
Olivers"

Setup Is Awesum
The way the free gre practice is setup is awesome. You take a pretest before every chapter and then they give you an answer sheet with page numbers so you can find where in the book you need to look on how to solve that problem. Testking actually taught a few things better and easier than some of my teachers. I thought it was incredibly effective and it mostly saved me time because I think that I would've done well either way but I would've just had to study more. I literally only went through the book once.
Omen"

In Depth Organised
I would highly recommend Testking free gre practice for anyone taking the GRE. The is in depth, systematically organized, and has a smart approach in its practice tests with reference pages for where to review and see where you went wrong. The section drove me insane and frustrated me enormously. This book makes it all feel easy and doable. Plus you can get it so cheap used, dont hesitate. Also, give yourself 6 weeks to work.This book does cover a lot of subjects. Thanks to all the other reviewers
Reymond"