Possible Duplicate:
WPF Applications: Visual Studio vs. Expression Blend
I was starting to learn WPF then i saw on youtube that someone used microsoft expression Blend to make some UI and integrate it into visual studio My question is
why is blend used for and what we design in it could be designed in wpf visual studio?
Why would microsoft would release it separately for UI?
is there any relation between WPF and silverlight?
sorry if it is a stupid question i am a bit confused