Programming Pig by Roberto Zicari · Published November 1, 2012 · Updated November 3, 2013 by Alan Gates LINK (free online version)
Machine Learning in Python: Essential Techniques for Predictive Analysis December 12, 2015 by Roberto Zicari · Published December 12, 2015
Text Mining and Visualization: Case Studies Using Open-Source Tools May 25, 2016 by Roberto Zicari · Published May 25, 2016
Zen of Cloud: Learning Cloud Computing by Examples on Microsoft Azure July 21, 2014 by Roberto Zicari · Published July 21, 2014