Some books that i have read or reading:
Artificial Intelligence for Humans, Volume 3: Deep Learning and Neural Networks – By Jeff Heaton
Hadoop: The Definitive Guide, 4th Edition – By Tom White
Lucene in Action, 2nd Edition – By Michael McCandless, Erik Hatcher, and Otis Gospodnetić
Apache Solr 3.1 Cookbook – By Rafał Kuć
Even Faster Websites – By Steve Souders
Making Things Talk, 2nd Edition – By Tom Igoe