David Powers is an author and trainer, who's passionate about web standards. He's written or contributed to 15 books and video series about Dreamweaver, PHP, CSS, and other web-related technologies. His most recent titles are HTML5, CSS3, and jQuery with Adobe Dreamweaver CS5.5: Learn by Video, and Adobe Dreamweaver CS5.5 Studio Techniques: Designing and Developing for Mobile with jQuery, HTML5, and CSS3 (both Adobe Press). David's articles are among the most popular tutorials in the Dreamweaver Developer Center. David is an Adobe Community Professional for Dreamweaver and specializes in developing web solutions using PHP and the MySQL database. Prior to his career as an author, David was a BBC radio and TV journalist, and spent many years working in Japan. He has translated several musical plays from Japanese into English.