Michal Zalewski is an internationally recognized information security expert with a long track record of delivering cutting-edge research. He is credited with discovering hundreds of notable security vulnerabilities and frequently appears on lists of the most influential security experts. He is the author of Silence on the Wire (No Starch Press), Google's "Browser Security Handbook," and numerous important research papers.
A classic - arguably canon - as far as security training books go,
and especially when it comes to web application security.
--Britt Kemp, Bishop Fox Labs