A quite ambitious attempt to write a self-contained textbook on mobile interaction design. It covers not only the particulars of designing for mobility and handheld devices, but also much more general material on interaction design methodology and techniques. Some of the general material is contextualized to mobile interaction design, other parts are very similar to what one might find in other introductory texts. A strong point of the book is that the authors draw on their own design experience to present a number of in-depth case studies. A slight weakness might be that the stated focus on "useful, usable and user experience" boils down to a comprehensive treatment of instrumental, HCI-type techniques whereas the experiential parts are addressed more superficially. Yet, I find the broad coverage of the book to be quite an asset in an educational setting where introductory courses these days may well start with mobile devices.