Airman Certification Standards - Private Pilot Airplane (ACS)Airman Certification Standards (Private Pilot Airplane) (Pilot's Weather)NOAA's National Weather Service (National Oceanic and Atmospheric Administration)
Federal Aviation Regulations ( (FARS)Aviation Laws (Alternate Source
VFR/Enroute ChartsVFR Charts, IFR Charts, TAC, Etc.
Airports by AOPAInformation about Airports
Aeronautical Information Manual (pdf) (AIM)FAA's Official Guide to Basic Flight Information and ATC Procedures.
Pilot/Controller Glossary (pdf) (P/CG)The correct way to say things: definitions and procedures.
Airplane Flying Handbook (AFH)How to correctly fly an airplane.
Handbooks & Manuals from the FAAHandbooks and Manuals published by the FAA
Risk Management HandbookFAA Handbook on Managing and Mitigating Risk in Aviation
Pilot's Handbook of Aeronautical Knowledge (PHAK)The horse's mouth on general aviation and beyond.
Practical Test Standards (PTS)Current Practical Test Standards from the FAA (PTS)