Sandi Sirotowitz, MEd, is a cofounder of Educational and Diagnostic Services, Inc., and is the coauthor of Study Strategies for Early School Success , Study Strategies Made Easy , and Vocabulary Unlimited . She lives in Newton Center, Massachusetts. Leslie Davis, MEd, is a cofounder of Educational and Diagnostic Services, Inc., a comprehensive learning center based in South Florida. She is the coauthor of Study Strategies for Early School Success , Study Strategies Made Easy , and Vocabulary Unlimited . She lives in Weston, Florida. Harvey C. Parker, PhD , is a clinical psychologist. A cofounder and former executive director of Children and Adults with Attention Deficit/Hyperactivity Disorder (CHADD), he has been highly involved in the advocacy for better understanding and treatment for children, adolescents, and adults with ADHD. He is the author of The ADHD Hyperactivity Handbook for Schools and The Problem Solver Guide for Students with ADHD, and the coauthor of Study Strategies for Early School Success . He lives in Weston, Florida.