Black Hat Python: Python Programming for Hackers and Pentesters
Justin Seitz
UNIX and Linux System Administration Handbook 4th edition
Evi Nemeth & Garth Snyder & Trent R. Hein & Ben Whaley
Database System Concepts 6th Edition
Abraham Silberschatz & Henry Korth & S. Sudarshan
MongoDB Basics
David Hows & Peter Membrey & Eelco Plugge
Pro Apache Phoenix: An SQL Driver for HBase
Shakil Akhtar & Ravi Magham