WPF

Tutorials
http://wpftutorial.net/DependencyProperties.html

 MVVM
http://msdn.microsoft.com/en-us/magazine/dd419663.aspx

Prism
http://msdn.microsoft.com/en-us/magazine/cc785479.aspx
http://msdn.microsoft.com/en-us/library/gg405471%28v=pandp.40%29.aspx

Samples
http://msdn.microsoft.com/en-us/library/ms771633%28v=vs.85%29.aspx

Control Customization
http://msdn.microsoft.com/en-us/library/ms745025.aspx

Free Resources (CodePlex and CodeProject)
Theme
http://elysium.asvishnyakov.com/en/downloads