Pro Git
Ben Straub & Scott Chacon
Foundations of Analog and Digital Electronic Circuits
Anant Agarwal & Jeffrey H. Lang
Fundamentals of Digital Logic with VHDL Design, 2nd Edition
Stephen Brown & Zvonko Vranesic
The Encyclopedia of Electronic Circuits, Vol. 2
R. Graf
Electric Cables Handbook, 3rd Edition
G. F. Moore