By describing experiments that control, manipulate and measure mental processes, this book shows how we can discover the answers to key questions about the mind, such as: 'Can we focus attention on more than one thing?' and 'Is language unique to humans?' Written in a down-to-earth narrative prose that avoids jargon, addresses the reader directly and draws on the authors' unique style ('suppose Willingham split his pants at a junior high dance ...'), this text takes complex experiments in cognitive psychology and describes them for undergraduate students. Willingham has a record of excellence in translating cognitive psychology research for K-12 teachers with his bestselling Why Don't Students Like School? and other popular books. This book applies the clear and approachable prose style towards building foundational knowledge in cognitive psychology for undergraduates.