Ian Pouncey is a web developer living in London, England, and working for the BBC. He has been working on the web for over 11 years, producing web sites from small sites for local businesses to the latest version of the Yahoo! home page. He is a member of the W3C Web Accessibility Initiative Education and Outreach Working Group and a web accessibility advocate.

Richard York is a web developer at Westlake Design, a web design and development firm, and an active contributing member of the PHP community. In addition to writing previous editions of Beginning CSS: Cascading Style Sheets for Web Design, he is also the author of Beginning JavaScript and CSS Development with jQuery.