The Books
My six GMAT books cover all of GMAT math. My books
- teach absolutely everything you will need to know for GMAT Quant. When I write my books, I go through a database of thousands of official questions, and I make sure my books teach what you would need to know to answer all of them
- include dozens of realistic medium-to-very-hard practice problems
- are written specifically for higher-level test takers
My books teach the best ways to do GMAT math. I have analyzed thousands of official problems in every topic and have worked out the approaches that will let you answer any question, and that will let you answer every question quickly. At the high level of the test, the GMAT is truly testing your conceptual understanding. The formulas and plug-into-a-table methods taught by most prep companies don’t work on harder questions (if they did, most people would get a Q51). There are better ways to do math. My goal is to ensure you always genuinely understand what you’re doing, so my books teach conceptual understanding and flexibility, and they prioritize logical and visual thinking over algebra and memorization. Using my approaches, I not only get a perfect score any time I take a real GMAT or official diagnostic, I get that score averaging about one minute per question. That’s not because I’m especially fast at algebra or arithmetic. It’s because the way I approach the test lets you answer questions far more quickly than any prep company method would.
Who My Books Are For: Because my books focus on conceptual understanding, and because the practice questions are all above medium-level, my books are not appropriate for someone still working on their mathematical fundamentals. I’d only recommend them to someone scoring over Q35 on practice tests. If you’re not yet at that level, I would recommend you build your foundation further before using my materials.
The books and some of the topics they cover:
Number Theory – $35 – 103 pages, 101 practice problems
Exponents and Factoring; Evens and Odds; Units Digits; Divisibility; Remainders; Number Theory in Word Problems and more
Word Problems – $35 – 166 pages, 135 practice problems
Fractions and decimals; Ratios and Percentages; Word Translation; Word Problems and Inequalities; Rates; Speed; Weighted Averages; Venn Diagrams and more
Algebra – $35 – 200 pages, 130 practice problems
Arithmetic; Fractions; Exponents and Roots; Equations; Factoring; Inequalities; Absolute Value; Sequences; Functions and more
Statistics – $20 – 58 pages, 57 practice problems
Mean, Median, Mode and Range; Standard Deviation; Equally Spaced Sets; Maximization Problems and more
Geometry – $35 – 161 pages, 89 practice problems
Plane Geometry: Area and Perimeter; Triangle Inequality; Special Triangles; Similar Triangles; Circles; Angles; 3-D Geometry; Geometry DS Strategy. Coordinate Geometry: Distances; Midpoints; Areas; Slopes; Equations of Lines and Curves; Intercepts; Intersection Points; common DS question types and more
Probability and Counting – $30 – 84 pages, 80 practice problems
Arithmetic with Factorials; The Pigeonhole Principle; Counting Techniques; Probability and more
Order the complete set of GMAT books here for $171 (save 10%) — please be sure to either use your email address as the “Shipping Address”, or send me your email address separately here:
To order books or problem sets individually, please contact me using the form here, and I will email you payment information.
The Problem Sets
I have four problem sets available, each containing 217 questions (the equivalent of 7 official GMAT Quant sections). The questions are mostly very difficult. If you are scoring in the Q44-Q51 range, my problem sets will give you realistic high-level practice – they will help you answer hard questions on the real test, and the more hard questions you can answer, the higher your score will be. If you are not yet scoring in the Q44-Q51 range, I wouldn’t suggest you use my problem sets yet – instead I’d suggest my books, which will help you improve to that level.
Each problem set is organized by topic, contains a mix of Problem Solving and Data Sufficiency questions, and contains complete, detailed solutions. There is no overlap between the questions in my problem sets and those in my books.
If you are considering only buying some of the problem sets, these are the important differences among them:
- Sets 1 and 2 are similar, and emphasize PS questions. Set 2 is slightly harder than Set 1, and is the hardest of the four sets
- Set 3 contains many more Word Problems than the other sets, and fewer problems on other topics.
- Set 4 emphasizes logic and conceptual thinking more than difficult word translation and algebra. It has much more DS than any of the other sets.
The questions in my problem sets are handcrafted, and were developed over many years. They’re not like the problems in other “challenge” sets available in the GMAT market. Each question is designed to extend your conceptual understanding, and to show you new ways a familiar math concept can be tested, since that’s how you’ll be tested on the real GMAT.
Official questions should be your highest priority, but there aren’t enough high-level official questions available. If you’ve exhausted official sources, and need additional high-level questions for practice, my problem sets include the most realistic questions you’ll find.
Problem Sets 1, 2, 3 and 4
$35 each
Order all four problem sets here for $126 (save 10%) — please be sure to either use your email address as the “Shipping Address”, or send me your email address separately here:
To order books or problem sets individually, please contact me using the form here, and I will email you payment information.
Sample Questions
Watch these videos for questions from my upcoming Problem Set 5.
Here’s a sample page from my upcoming Problem Set 5.
