Sanjeev Jaiswal is a computer graduate with 7 years of industrial experience. His works involves Perl, Python, and GNU/Linux. He is currently working on projects involving penetration testing, source code review, and security design and implementations.

He is very much interested in web and cloud security. He is also learning NodeJS and cloud security.

Sanjeev loves teaching engineering students and IT professionals. He has been teaching for the last 8 years in his free time. He founded Alien Coders (http://www.aliencoders.org), based on the learning through sharing principle for computer science students and IT professionals in 2010, which became a huge hit in India among engineering students.

You can follow him on Facebook at http://www.facebook.com/aliencoders, on Twitter at @aliencoders, and on GitHub at https://github.com/jassics.

Sanjeev wrote Instant PageSpeed Optimization and co-authored Learning Django Web Development for Packt Publishing. He has reviewed more than 5 books for Packt and looks forward to more such opportunities.

Ron Mitsugo Zacharski is a computational linguist working in the areas of information extraction and machine learning (zacharski.org). He has a BFA in music from the University of Wisconsin at Milwaukee and a PhD in computer science from the University of Minnesota, and he completed a post doctorate in linguistics at the University of Edinburgh. He authored the free online book A Programmer's Guide to Data Mining: The Ancient Art of the Numerati (www.guidetodatamining.com) and co-edited The Grammar-Pragmatics Interface: Essays in Honor of Jeanette K. Gundel, published by John Benjamins. For the majority of his academic life, he has focused on multilingual natural language processing, particularly with lesser-studied languages. Dr. Zacharski is a Zen monk in the Sōtō School lineage of Soyu Matsuoka. He lives in New Mexico.