The Avionics Technician Handbook- Volume One was written by technicians for technicians to be the Handbook for the line maintenance technician to have in the field. This updated version contains:
Attitude and Heading systems and AHRS information. 
Performing an aircraft Compass system swing,
Operation and testing of an aircraft's Pitot/Static System 
Test and calibrate an aircraft fuel quantity system,
General Aviation and Air Carrier Aircraft Cockpit Layouts 
Principles of test equipment calibration
Operations of and troubleshooting with a basic multimeter
Testing with an Oscilloscope
Using a Megohmmeter or Insulation Tester
Testing with a TDR
Operation and testing of aircraft engine indication systems
 
And the Radio Communications System book are designed to prepare technicians for the NCATT Add-On ratings for Radio Communications Systems, Onboard Safety Systems, Dependent Navigation System and Autonomous Navigation Systems. These books are also created to teach real system testing and troubleshooting of avionics systems. 
This book is a must have for those pilots wishing to understand the operation of the avionic systems in most GA and Air Carrier aircraft. Pilots today need to have a better understanding of the systems to work with the technicians when troubleshooting problems.