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GMAT Hacks

Jeff Sackmann, the author of GMAT HACKS, Total GMAT Math, Total GMAT Verbal, Total GRE Math, and a variety of other resources, has been helping students prepare for the GMAT and apply to business school since 2000. Until 2005, he worked for one of the large test-prep companies, teaching classroom courses, running workshops, and tutoring. He has also taught the LSAT, GRE, SAT, and countless other specialized admissions and certification exams. In addition to teaching, he has written curriculum (including thousands of practice questions), trained teachers, and starred in instructional videos.

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