What is the best book on WPF 4 for experience developer?

Question

I have about 2 - 3 years of experience with WPF on .NET framework 3.5. I start programming in WPF by Windows Presentation Foundation Unleashed, I use its as reference as well.

Now, I have a plan to move to WPF 4, which I think I need to refresh my knowledge on WPF. I want to know can I still use my old book or it's better to buy new one, if so please suggest WPF 4 book for me.

Answer 1

I suppose WPF 4 Unleashed, by Adam Nathan, would be what you're looking for.

Answer 2

In my opinion there are no big changes to read a new book.

Just read a couple of blog posts and you are good to go:

• What's New in WPF Version 4 (MSDN)
• WPF 4 (VS 2010 and .NET 4.0 Series) (ScottGu)
• WPF 4 Release: A guide to the new features (Pete Brown)