Learning Scala: Practical Functional Programming for the JVM
Jason Swartz
Mastering Apache Spark
Mike Frampton
Hacking VoIP: Protocols, Attacks, and Countermeasures
Himanshu Dwivedi
Apache Mahout Essentials
Jayani Withanawasam
And Another Thing...
Eoin Colfer
The Hitchhiker's Guide to the Galaxy (6)