Airplane Flying Handbook
http://www.faa.gov/library/manuals/a...h-8083-27a.pdf Student Pilot Guide
Instrument Flying Handbook
Instrument Procedures Handbook (IPH)
Pilot's Handbook of Aeronautical Knowledge
Some folks have already touched on some of these books, but these should get you to a pretty good point in PPL and IR training. You can usually purchase these online or download them in PDF (except for stick and rudder) from the FAA website.