MongoDB Basics
David Hows & Peter Membrey & Eelco Plugge
Getting Started With oVirt 3.3
Alexey Lesovsky
Building Applications on Mesos
David Greenberg
And Another Thing...
Eoin Colfer
The Hitchhiker's Guide to the Galaxy (6)
Optimization: Algorithms and Applications
Rajesh Kumar Arora
An Introduction to Optimization
Edwin K. P. Chong & Stanislaw H. Zak