When my father died 7 years ago, my brothers and I divided up his camera collection. I am not an avid photographer (though I do understand photography). My father was one and we even had an SLR engraved in his gravestone! Anyways, he has variety of Canons, Nikons, a couple of Leicas, and brands I have never heard of before. Also a lot of lenses and accessories. I am now finally starting to inventory his stuff. Luckily he kept some notes with each piece and I am using the internet to try to figure out what it is, date of manufacture, etc. Do you have any recommendations for collector reference books?