Since Nikon Corporation became a manufacturer of photographic equipment in 1948 many books have been written about Nikon Corporation and its products. Nikon Corporation produced many manuals, product catalogues, sheets and advertisement and public relations materials.
! All books Nico van Dijk has ever published on Nikon are out of print !
Dr. Kenneth S. Tydings published in 1956 the first known Nikon Guide.
just a few other books about Nikon
Since the invention of the internet thousands of web sites are offering reviews, tests and technical information about Nikon gear.
Just enter what you are looking for in a search bar of any search engine and you'll find out what's available. It is impossible to list those sites here.