The argument John Anderson gives in this book was inspired by the passage above, from the last lecture by one of the pioneers of cognitive science. Newell describes what, for him, is the pivotal question of scientific inquiry, and Anderson gives an answer that is emerging from the study of brain and behavior. An eloquent, personal and closely argued book, that synthesizes decades of Anderson's ground-breaking work, integrates that work with the latest advances from brain imaging, and provides inspiration and direction for the future of cognitive science. This book puts cognitive architecture back at the heart of the subject, and provides a rich and coherent account of the computational machine that is the human brain.