This web book will be continuously developed and improved based on received feedback. I am now a professor emeritus, which means that I have retired and am no longer academically involved in research and teaching. As time passes, various parts of this book may become obsolete. As noted below I consider this web book to be supplementar y to hard cover texts and strongly suggest that teachers and students do not use The Joy of Visual Perception as a stand-alone source of educational material. A Web Book is not a book in the traditional sense.
Most books are text supplemented by figures.
This book is primarily figures and diagrams supplemented by text. As a consequence to use this book on the Web it is important to have graphics capabilities on your browser. Another difference between a web book and ordinary textbooks is that when on the web one can link to web pages that are available on the Internet. I thank the scientists who made these websites available. It was my intent to give appropriate attribution to all such websites.