Looking for a book beyond the basics

[blumarble]

I'm looking for a reference book on Revit that goes beyond the basics. I looked at "Introducing & Implementing Revit" & found a little too basic. I'm looking for something that might be considered "intermediate" & explains some of the concepts & techniques in more depth. I'm considering "Mastering Autodesk Revit Building" by Paul F. Aubin.
Anyone have any suggestions?

[gibson.tim91884]

On the same note, does anyone know if there is a sample chapter of Paul's book available anywhere? I'd like to get it, but it would be easier to convince the purse strings to let me expense it if I knew ahead of time that it was appropriate for our needs...