Jerry Bobrow, Ph.D., was an award-winning teacher and educator, and his company BTPS Testing is a national authority in the field of test preparation. BTPS Testing has been administering test preparation programs for most California State Universities for the past 34 years. Dr. Bobrow and his faculty have authored more than 30 national best-selling test preparation books including Cliffs Preparation Guides for the GRE, GMAT, CSET, SAT, CBEST, ACT, and PPST. Each year the faculty of BTPS Testing lectures to thousands of students on preparing for these important exams. Ed Kohn is an outstanding educator and author, with over 33 years' experience teaching mathematics. Currently, he is the testing coordinator and math department chairman at the Sherman Oaks Center for Enriched Studies.