LED Lighting: Devices and Colorimetry is a self-contained and introductory-level book featuring a blend of theory and applications that thoroughly covers this important interdisciplinary area. Building on the underlying fields of optics, photonics, and vision science, it comprises four parts. PART I is devoted to fundamentals, and the behavior of light is described in terms of rays, waves, and photons. PART II deals with the generation of light in semiconductors and details the operation and properties of III-V semiconductor, quantum-dot devices, organic semiconductor devices, and perovskite devices. PART Ill focuses on vision and the perception of color as well as on colorimetry. It delineates radiometric and photometric quantities as well as various measures of luminous efficacy and efficiency. PART IV is devoted to LED lighting, focusing on its history and salutary features, and on how this modern form of illumination is deployed. Each chapter contains practical examples, highlighted equations, color-coded figures, and an extensive bibliography.