Eric Goodman began his career in test preparation and instructional design soon after graduating from Cornell University. His numerous top-selling, critically acclaimed books and courses have helped tens of thousands of students master the LSAT, GMAT, GRE, and SAT. He has also authored online courses and innovative computer-based simulations in the fields of economics, corporate training, and e-commerce.

David Younghans has taught the GRE for more than a decade. After working for two major test preparation companies, David founded Gorilla Test Prep. SparkNotes Guide to the GRE Test is the basis for Gorilla Test Prep’s very successful GRE course. Before working in test preparation, David was a ski instructor for the disabled in Winter Park, Colorado. David holds a degree in mathematics and economics from Dartmouth College, where he was named Outstanding Tutor of the Year.