Dick Oliver has brought his unique and colorful writing style to several web and graphics books from Sams, including Web Page Wizardry and Tricks of the Graphics Gurus. He is the president of Cedar Software and publishes the online newsletter Nonlinear Nonsense. Michael Morrison (Nashville, TN) is a writer, software developer, toy inventor, and author of a variety of Sams books, including the previous edition of this book, Sams Teach Yourself HTML and XHTML in 24 Hours and the second and third editions of Sams Teach Yourself XML in 24 Hours.