OpenStack Operations Guide
Tom Fifield & Lorin Hochstein & Jonathan Proulx & Everett Toews & Diane Fleming & Joe Topjian & Anne Gentle
Thoughtful Machine Learning With Python: A Test-Driven Approach
Matthew Kirk
Linux Command Line and Shell Scripting Bible
Christine Bresnahan & Richard Blum
Gitolite Essentials
Sitaram Chamarty
Rake Task Management Essentials
Andrey Koleshko