I picked this book up and started reading the CMU camera chapter. The chapter lack depth and completeness. The author says nothing about how the image could be transmitted wirelessly to the PC or how the CMU camera communicates with the PIC. It seems that he is more concerned with selling the camera from his company Images SI than he is with writing a good book. The only useful thing that he mentioned is that you need to activate a software flourescent filter in a room that uses such lighting. But the price definately reflects the quality in this case!