Includes bibliographical references and index.

Introduction : the middle of Moore's law -- What is user experience design and who creates it? -- Interaction metaphors -- Information is a material -- The Whirlpool Centralpark refrigerator : the design of an accessory port -- Information shadows -- Clickables : toys and information shadows -- Devices are service avatars -- The iPod : a service avatar -- Applianceness -- RoomWizard : an appliance for office society -- Scales of experience -- Plasma poster : unifying work cultures with a digital poster -- Observation and ideation -- Simulation and sketching -- Nabaztag, an ambiguous avatar -- Augmentations and mashups -- Common design challenges -- From invisible computing to everyware.