Well I just received my signed copy of George Eastman's Cameras from Grant Haist. What an enjoyable, wonderfully detailed book. I had taken this opportunity to also get a signed copy of Modern Photographic Processing. An extra bonus, when Mrs. Haist kindly called me to confirm shipping costs, she asked me if I wanted to "say hi to Dr. Haist". This was a real moment for me in my photographic life. It might sound strange to others, but people like Haist are sort of rock stars to me, in many ways no less impressive than any of the great artists who use(d) the products that came out of photographic research. The volumes by Haist, Mason, Mees, James etc are not only hugely informative and enlightening, but give you a sense of the monumental efforts that were involved in an extraordinarily complex field of research which no longer exists.