When we first did a Doors conference in 1993, the concept of interaction design was still in its infancy. Today, designers of digital technology products shape not just what the world looks like, but what it’s like to use. In his eagerly awaited book Designing Interactions Bill Moggridge, designer of the first laptop computer (the GRiD Compass, 1981) and a founder of the design firm IDEO, tells us stories from an industry insider’s viewpoint. The book is based on interviews (there is also a DVD) with forty of the influential designers who shaped – and shape – our interactions with technology. Gillian Crampton Smith answers the question, “What is Interaction Design?” The original designers of The Mouse tell us why and how they did it. There are fascinating encounters with Brenda (Computers as Theatere) Laurel and Will (The Sims) Wright. Larry Page and Sergey Brin describe how they made the ultimate less-is-more interface for Google. Service designers Live|Work, Fran Samalionis, and Takeshi Natsuno describe how they derive useful purposes for all this tech. Hiroshi Ishii, Durrell Bishop, Joy Mountford and Bill Gaver describe their ongoing efforts to design multi-sensorial computing. Moggridge concludes by discussing “Alternative Nows” with Dunne and Raby, John Maeda and Jun Rekimoto. I count ten Doors alumni in the list, so don’t expect this notice to be unbiased. Besides, Don Norman puts it best as usual: “This will be the book”.