Introduction to Logic Design, 2nd Ed.
Sajjan G. Shiva
Ugly's Electrical References
George V. Hart & Sammie Hart & William C. Buchanan
Mechanics of Materials, 6th Edition
David F. Mazurek & Ferdinand P. Beer & E. Russell Johnston Jr. & John T. DeWolf
Principles and Applications of Electrical Engineering
James A. Kearns Dr. & Giorgio Rizzoni
The Art of Paragliding
Dennis Pagen
Understanding the Sky - A Sport Pilot's Guide to Flying Conditions
Paragliding Pilots Handbook
Papillon Paragliding
Elementary Pilot Training Guide
BHPA