Key Features, Provides an essential source for user interface design guidelines and how, when, and why to apply them, Arms designers with the science behind each guideline, allowing them to make informed decisions in projects, and to explain those decisions to others, Equips readers with the knowledge to make educated tradeoffs between competing rules, project deadlines, and budget pressures, Completely updated and revised, including additional coverage in such areas as persuasion, cognitive economics and decision making, emotions, trust, artificial intelligence, errors, and speech UIs. In Designing with the Mind in Mind, Third Edition, best-selling author Jeff Johnson provides designers with just enough background in perceptual and cognitive psychology that UI design guidelines make intuitive sense rather than being just a list of rules to follow. Early UI practitioners were trained in cognitive psychology, and developed UI design guidelines based on it. But as UI design has evolved since the first edition of this book, designers have entered the field from many disciplines. Practitioners today have enough experience in UI design that they have been exposed to design guidelines, but it is essential that they understand the psychology behind the guidelines in order to effectively apply them. In this new edition, you'll find a new chapter on the psychology of error, as well as new content on designing for tactile and multi-touch devices; persuasion, cognitive economics and decision-making; more coverage of speech UIs; more real-world examples; and updated visual examples. Book jacket.