This is a great history book of interaction and product design by the heavy hitters in the digital industry. It's great for history, but if you want a book to learn from, this is not it. It's a huge collection of 42 interviews and is 735 pages with a lot of photos of how those experts did it. The last chapter, which is 94 pages, is the main chapter you can learn from. And there are 22 completely blank pages in the book. I would have been happy if they would have at least put some interaction design principles on those 22 pages. They could have really packed a lot of useful material on how to design interactions. (And they could use the enclosed CD to follow-up on those 22 pages with some great visual material and then you would have a complete course on "Designing Interactions") That's what the name of the book is, "Designing Interactions". I challenge them to put together a "design team" for the next edition and put the most important principles of interaction design on those 22 pages! I bet they can't or won't do it! Just think how much more valuable a book it would be. Then it wouldn't just be a history book of interaction design but something where learning could be integrated with the history. But that is probably too radical of a concept and the editors and publishers and decision makers just won't go for it. I bet they won't do it.