The textbook "Visual Transduction and Non-Visual Light Perception" offers a comprehensive analysis of advancements in the study of vertebrate vision. It highlights the complex processes of visual transduction that are crucial for object recognition and establishing spatial relationships. The authors, Colin J. Barnstable and Joyce Tombran-Tink, explain the evolutionary aspects of the eye as an organ of vision, as well as the molecular mechanisms involved in phototransduction. Additionally, the perception of radiation outside the visible spectrum is addressed, illustrating the limits of human sensory perception. This book integrates developmental, structural, and molecular mechanisms of visual transduction and serves as a valuable resource for researchers in the field of visual systems.