I just got my copy of Joe Duffy’s new book Professional .NET Framework 2.0. Joe was a member of my team on the CLR during most of the time he wrote this book.. While I have not read it cover to cover yet, I can tell you it is going to be a good one. Joe has an insatiable curiosity to figure out how things work and no doubt that will come through in his writing.
Oh, and I just noticed that Dot Net Rocks! got Joe for an interview recently… you can check him out for free and see if it is worth buying the book ;-)