Under the aegis of Andrew Sears and Julie Jacko, expert practitioners address the myriad issues involved when designing the interactions between users and computing technologies. The book examines HCI from the intersection of a privacy, security, and trust perspective. It explains how to reduce cognitive complexity by achieving psychological simplicity. Example topics include adaptive interfaces, tangible interfaces, information visualization, designing for the web, and computer-supported cooperative work. As expected in a book that begins by pondering "Why we should think before doing," readers get an interdisciplinary resource that improves their understanding of the relationship between people and technology.