Bob Caspe has written several essays on various technical topics centered around his experience with digital imaging and DSP development.
He has also written a textbook entitled "Entrepreneurial Action" which he uses when teaching his course: "Marketing for Entrepreneurs" at the Babson College MBA program. Other teachers have also adopted this textbook.
Bob also occasionally maintains a blog with his various rantings.
An Essay on the Consumer Photographic Experience
This essay by Bob Caspe explores the basic psychology of consumer photography and speculates on the next wave of consumer cameras and printing.