Ellen Isaacs

Ellen Isaacs is a technology design leader at AT&T Labs. She has been designing user interfaces for over 12 years at such companies as Sun Microsystems, Excite@Home, and Electric Communities, where she worked on systems for Palm PDAs, the Web, Windows, and OpenWindows. Active in the human-computer interaction community, Ellen has designed and studied the use of innovative applications that help people communicate, collaborate, and manage their information. She has a Ph.D. in cognitive psychology from Stanford University. Ellen can be reached at ellen@uidesigns.com.

Alan Walendowski is a software engineer at AT&T Labs. He has been writing software for 15 years, working for companies such as Sun Microsystems, 3dfx, IBM, and ComputerVision. A "general purpose" programmer, he has developed device drivers, graphics engines, distributed systems, and user interfaces on various platforms, including PalmOS, Solaris, Linux, and Windows. Alan has a bachelor's degree in computer science from Boston University. He can be reached at alan@uidesigns.com.

The authors have developed a Web site to continue the discussion started in this book. Please visit www.uidesigns.com to contribute your comments and questions.