Maybe try & find a copy of the Nikon & Nikkormat Way by Herbert Kepler. It dates from the 70's and talks mostly about the F & F2. but from a basics point of view I found it very useful. The book is long out of print but comes up on ebay from time to time. I paid around 10 for mine. Think it is a late edition with a rather lovely looking lady on the cover and some green pages that cover the then brand new Nikon F3.