Thomas A. Farmer, Ph.D., is currently a Lecturer in the Department of Psychology at California State University, Fullerton. He has 20+ years of research experience in the cognitive sciences, and nearly as many years of experience teaching topics related to cognition and experimental psychology. Dr. Farmer has been responsible for the updating and revision of Cognition since Dr. Margaret Matlin’s retirement, and thus shares authorship of this 11th edition of the book.