Pro WPF in C# 2008: Windows Presentation Foundation with .NET 3.5, Second Edition :
http://www.amazon.com/gp/product/1590599551/ref=pd_lpo_k2_dp_sr_1?pf_rd_p=486539851&pf_rd_s=lpo-top-stripe-1&pf_rd_t=201&pf_rd_i=0596101139&pf_rd_m=ATVPDKIKX0DER&pf_rd_r=0A7JXNBZZR6Y9RNFRRYP

and

Windows Presentation Foundation Unleashed :
http://www.amazon.com/Windows-Presentation-Foundation-Unleashed-WPF/dp/0672328917/ref=pd_sim_b_3

Some great sites:
http://team.interknowlogy.com/blogs/adamcalderon/default.aspx
http://www.beacosta.com/blog/ or http://bea.stollnitz.com/blog/?p=52 (I like this entry)
http://drwpf.com/blog/Default.aspx

and these for starting out:
http://www.dnrtv.com/default.aspx?showNum=56


>I can't remember the books which others here have referenced to learn WPF, but I'd appreciate it if that person or persons here on UT could list those books again. I am due for a trip to BORDER BOOKS real soon and want to get at least one WPF book. I was up at 3:30 AM reading C#, watchign C# videos, and just plain excited about all the cool stuff. I let C# go for a few years and came back and voila!, it's all new again.
>
>Cecil
>
>>Others have pointed out that the main thing is the move away from GDIplus and User32 to DirectX and a new User Interface layout system. But there are other useful features in WPF - for example routed events (and the Commanding system), better databinding possibilities and a new printing sub-system.
>
>>Warning: if you dive in to WPF you will initially find it *very* frustrating.
>>Advice: Dive in :-}