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Charles bibilos

Charles Bibilos is one of the world’s most accomplished independent GMAT instructors, with more than 15 years of experience as a classroom teacher and private tutor.

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mike maietta

Michael graduated summa cum laude in Mechanical Engineering, and is an experienced teacher, writer, and management consultant.

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dave goldstein

Dave has taught test prep since 2004, winning teacher-of-the-year awards from two major test-prep companies before joining GMAT Ninja.

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dana stepleton

Dana is a West Point graduate and former Army captain who has earned a 780 on the GMAT, in addition to 99th percentile scores on the GRE, SAT, and ACT.

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We want you

Do you love teaching? Do you enjoy crushing standardized tests, even if you’re embarrassed to admit it to your friends? Let’s work together!