I approached this book with some misgivings because its title connotes a promotional text about a brand drug. Since Ritalin is one of five marketed stimulants with few clinical distinctions, why focus exclusively on one? Perhaps because Ritalin, and its generic methylphenidate, are commonly prescribed in attention deficit hyperactivity disorder (ADHD) and have borne the greatest public outcry concerning alleged misuse and abuse. Therefore, a summary of current knowledge serves a useful purpose.