Hurray, hurray, this is what we've all been waiting for. I still remember my initial talks on this a few years ago when I said: "Mark, we need a book from MS Press on AX to be taken seriously!". "Great idea", he said... And now, it's here. And what a book it is...

The book delves into the technology and tools of Microsoft Dynamics AX 4.0. The architects from the Microsoft Dynamics AX team take you deep inside the application frameworks and the development environment. You’ll get expert insights to help you master the intricacies of planning, programming, and maintaining adaptable enterprise resource planning solutions. New and experienced developers are the intended target audience, and consultants will also benefit from reading the book. The intention is not to give any guidance on application functionality, but rather to offer as much technical information between the two covers as possible.

You can get a glimpse here or order it directly at e.g. Amazon (but you might as well get it at Barnes & Nobles or any other online store)