Git Fundamentals
Thom Parkin
Test-Driven Infrastructure With Chef
Stephen Nelson-Smith
A World Without Time: The Forgotten Legacy of Godel and Einstein
Palle Yourgrau
Git Essentials
Ferdinando Santacroce
Mastering Parallel Programming With R
Simon R. Chapple & Eilidh Troup & Thorsten Forster & Terence Sloan
Apache Solr High Performance
Surendra Mohan
Hadoop Cluster Deployment
Danil Zburivsky