[Disclaimer: I”ve received a free copy of the book and I”m a friend of one of the authors. However, I can assure you that none of these things influenced my avaliation of this book]
I”ve just finished reading my copy of ASP.NET AJAX in Action. What can I say? If you”re after a book that has several cool examples and lots of insights on the platform, then go ahead and buy it. It”s really a good book to have around, specially if you”re working with the platform (shameless plug again: if you prefer to read in PT, why don”t you take a look at my book available on the FCA site?). The authors have covered the client and server components in great detail, giving you lots of good advices on what you should and shouldn”t do.
The only thing I didn”t really like were the diagrams. I mean, the pictures are really cool, but I still think that relations between classes are better expressed with UML than with some custom diagrams (I”ve read several technical books and the tuth is that most of them don”t use UML, which is really shame…). Having said that, I”ll give this book a 9/10 for its content and accuracy (which really means that this is a “must have” book if you”re trying to learn the ASP.NET AJAX platform).