Handbooks & So-Forth
Pilot's Handbook of Aeronautical Knowledge
It discusses all matters surrounding general aviation, with an emphasis on knowledge. Small wonder.
Airplane Flying Handbook
Regarding how, in fact, to fly; This notes maneuvers a bit more than the PHAK, as a supplement of 'what to do right' within your training.
Aerodynamics for Naval Aviators
A Neat Book.
The Source of All Manuals: https://www.faa.gov/regulations_policies/handbooks_manuals