This edition includes new features such as: completely updated to include new chapters on Interfaces, Data Gathering and Data Analysis and Interpretation, the latest information from recent research findings and new examples; now in full colour; a lively and highly interactive Web site that will enable students to collaborate on experiments, compete in design competitions, collaborate on designs, find resources and communicate with others; and, a new practical and process-oriented approach showing not just what principals ought to apply, but crucially how they can be applied. "The best basis around for user-centered interaction design, both as a primer for students as an introduction to the field, and as a resource for research practitioners to fall back on. It should be labelled 'start here'."--Pieter Jan Stappers, ID-StudioLab, Delft University of Technology.