David Karlins is a web design consultant, teacher, and author of dozens of books on web design, including Building Websites All-in-One For Dummies, John Wiley & Sons Inc. (co-author with Doug Sahlin), Adobe Creative Suite 5 Web Premium How-Tos: 100 Essential Techniques, Peachpit, and Dreamweaver CS5.5 Mobile and Web Development with HTML5, CSS3, and jQuery, Packt Publishing.