Inside Microsoft Dynamics AX 4.0
I have finished reading the book a couple of days ago, and it was real pleasure!
Some sentences have kind of opened my eyes; others were quite cognitive, even if not related to my immediate tasks. And if you asked me, what were my favourite chapters, I would name four of them: Performance, The Data Layer and 2 small funny chapters named Advanced MorphX Forms and Reflection.
If you code in X++ and still hesitate whether you need "Inside Microsoft Dynamics AX 4.0" on your bookshelf - stop thinking. Just order it, read it, and then put onto your ... no, not "shelf". You will definitely need it onto your desktop - to reference from time to time.