SteveR wrote:
For an extended manual, Darrell Young's Mastering the Nikon D7200 would be the best thing for you. It's not a book on how to take pictures, but goes more in depth on each function of the camera than the manual does. I have the book on the D800, and the section on focusing, for instance, is 26 pages.
The David Busch Manuals are of the same caliber, I have them for three of my cameras. Waiting for his D500 manual to come out next month.