Christian Wenz is an author, consultant and trainer focusing on web technologies. He wrote or co-wrote over 100 books, is a fixture at international developer conferences since 2001, is a Microsoft Most Valuable Professional (MVP) for ASP.NET, an ASPInsiders member, and main author of the Zend PHP 5.5 certification. His day job at Munich/London-based Arrabiata Solutions (http://www.arrabiata.com/) includes conducting security audits, migrating old code bases, implementing complex web applications and helping companies choose the right web strategy and web technology mix.