This book challenges conventional understanding of vision by proposing a wholly empirical theory. Dale Purves, a neuroscientist, presents a framework that posits vision is not an inherent property of the eye or brain, but rather a consequence of the brain's interaction with the external world. The work draws upon extensive empirical data and experimental evidence to support its claims, aiming to provide a more accurate and grounded explanation for how we perceive the visual environment.

This work is recognized for its rigorous empirical approach to understanding vision, offering a distinct perspective that challenges established theories. Purves's extensive research and data-driven arguments aim to provide a more grounded explanation for visual perception. The book is likely to appeal to specialists in neuroscience, vision science, and cognitive psychology seeking a comprehensive, evidence-based account of how we see.