FAA-H-8083-25C -Pilot's Handbook of Aeronautical Knowledge
FAA-H-8083-3C -Airplane Flying Handbook
Gleim Private Pilot Knowledge Test, Part # 13-32345
Gleim Pilot Logbook, Part # 13-01822 (www.aircraftspruce.com/catalog/pspages/gleimMisc.php)
Sportys Learn To Fly Course- Private Pilot Test Prep.
King Schools- Private Pilot Online Ground School & Test Prep
https://medxpress.faa.gov/MedXpress