OpenCV 3 Computer Vision with Python Cookbook
Aleksei Spizhevoi & Aleksandr Rybnikov
Learn Windows PowerShell 3 in a Month of Lunches
Don Jones & Jeffrey Hicks
Serious Python
Julien Danjou
Kali Linux - An Ethical Hacker's Cookbook
Himanshu Sharma
Linux in a Nutshell
Ellen Siever & Stephen Figgins & Robert Love & Arnold Robbins