This book builds upon an original version that was created by the students in Dr. Cheryl Olman’s Sensation and Perception at the University of Minnesota. The students created the book as a class project, because there was no existing open-source textbook for S&P. Most of the content is reused and remixed from existing open-source materials from Psychology and Anatomy textbooks. The current version of this book was remixed and edited by Dr. Jill Grose-Fifer (John Jay College, CUNY) in 2025, and is a work in progress.