Summary: The book delves into sensory psychology, exploring how our sensory equipment transforms physical energy into usable information, touching on vision, physiological mechanisms, and perceptual topics. It emphasizes the interplay between sensory psychology and physiology, showcasing contributions from physicists, physiologists, and psychologists. The text discusses common problems faced by all sensory systems and the methods used to study organism responses to stimuli, along with an array of psychophysical methods. It addresses the importance of wavelength discrimination, illustrated through sensitivity curves, and examines the perception of three dimensions, emphasizing monocular depth cues. Furthermore, it covers auditory mechanisms, including adaptation effects and intensity discrimination. The text offers a deep dive into sensory processes, highlighting the complex interplay between sensory psychology and physiology to unravel the mysteries surrounding our sensory capacities.