Sight can be so effortless, so useful, and so entertaining--the average human can distinguish several million colors; a falcon can see a fencepost from three thousand yards--that we never stop to think about how complex a process it is and how easily it can fail us. We never have as clear and complete a picture of the world around us as we think we do. The gaps between what our eyes take in and what is in our mind's eye provide the unifying theme in Bruno Breitmeyer's wide-ranging volume. In his fascinating account of the many ways that our eyes, and minds, both see and fail to see, Breitmeyer