What is mind? Still harder, what is consciousness? In this radical new book, eminent philosopher Ted Honderich tackles this great mystery in philosophy, psychology, neuroscience—and the rest of life. He proposes to replace all competing theories of consciousness with actualism that rests on data you share yourself.

Unlike other theories, actualism differentiates among the three sides of consciousness—consciousness that is seeing, consciousness that is thinking, and consciousness that is wanting. Consciousness in seeing is not an image or picture in your head, but the existence out there of a real but subjective thing, dependent on both the objective physical world out there and on you as a person. In its attention to the concrete, actualism is becoming increasingly popular among philosophers, psychologists, and neuroscientists who had previously declared an urgent need for a new theory.

Honderich’s readable, understandable, and unpretentious writing lays out these bold concepts and complex thoughts with clarity and verve. He reinvents our understanding of ourselves, our consciousness, and our mind.