Kathy A. Zahler is a widely published textbook writer and the author of McGraw-Hill's Conquering GRE Verbal and McGraw-Hill's MAT: Miller Analogies Test. She is also the author of the bestselling Test Your Cultural Literacy.
Christopher Thomas is a professor of math at Massachusetts College of Liberal Arts. He is the author of Calculus Success in 20 minutes a Day and Trigonometry Success in 20 Minutes a Day. Thomas has been teaching a math for liberal arts course for the past three years.