The wonderful Mastering Autodesk Revit Architecture series is one of the standard books on Revit. Highly recommended. Put together by this crew of knowledgeable folks, it's currently available from amazon and soon as a downloadable version.
In additional to all the BIM basics, there are extra chapters on all sorts of great work being done via Revit. The one on Revit in the movie industry for set design is stunning! We got to help out on this one too, in that we wrote the extra chapter on BIM-to-CNC fabrication.