Erfun has helped clients achieve these scores on the GRE

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Hi, I'm Erfun Geula, the founder of Compass Prep. I'm an honors Yale graduate with a perfect GRE score (Quant: 170, Verbal: 170), and I've tutored the GMAT and GRE full-time for the past 13 years and have over 15 years and 15,000 hours of tutoring experience. If anyone asks, I will proudly admit that I am a bona fide test prep geek. So much so that I was commissioned by McGraw Hill Education as the sole author of McGraw Hill’s Preparation for the GRE, a 500+ page comprehensive guide to the GRE. The book is now in its 8th edition and has sold over 80,000 copies worldwide. I was even interviewed by US News World Report for an article on the GMAT and GRE. Before focusing my efforts on GMAT and GRE tutoring, I worked as a GMAT Content Developer at a major test prep company, in which role I wrote, edited, and explained over 1,000 GMAT questions. Prior to this, I worked as Director of SAT Materials at another major test prep company, where I was involved in writing and editing thousands of SAT Verbal questions. Through these positions and the in-depth question analysis they required, I developed first-hand insight into the test makers’ perspective, the fundamental reasoning skills they assess, and the crafty ways they manipulate seemingly simple concepts into complex puzzles. I have been fortunate to help students across the globe, from management consultants in New York City to civil engineers in Saudi Arabia to Psychologists in Paris. I have been honored to have helped scores of these students gain admission to such prestigious schools as Harvard, Yale, Stanford, Wharton, and Columbia, and I am confident that I can do the same for you.