Write Great Code, Volume 2, 2nd Edition
Randall Hyde
Write Great Code (2)
Clojure for the Brave and True
Daniel Higginbotham
Learning Spark
Holden Karau & Andy Konwinski & Patrick Wendell & Matei Zaharia
97 Things Every Application Security Professional Should Know
Reet Kaur and Yabing Wang
The Principles of Object-Oriented Javascript
Nicholas C. Zakas
Mastering pfSense, Second Edition
David Zientara