Airplane Flying Handbook (FAA Handbooks series)
Instrument Procedures Handbook: FAA-H-8261-1A (FAA Handbooks)
Aviation Maintenance Technician Handbook—Powerplant: FAA-H-8083-32 Volume 1 - Volume 2
Aircraft Inspection, Repair & Alterations: Acceptable Methods, Techniques, & Practices (FAA Handbooks)