The Principles of Light and Color (1896) by Edwin D. Babbitt is a pioneering work on the science of color and light, exploring the role of color in physical, psychological, and spiritual well-being. Babbitt delves into the physiological effects of color on the human body and mind, presenting the idea that colors have healing properties. The book also discusses the spectrum of light and its influence on the health of individuals, offering insights into the early field of chromotherapy. As a leather-bound edition, this book represents an important moment in the development of holistic health practices and remains a key text for those interested in color theory, light science, and the healing arts.