While I was showing some hints on WPF to a friend of mine,
I also found a video tutorial that includes most of them.
Author is Pete Brown, and it made a great job to me: a 32 minutes video showing simple concepts about binding, mvvm, xaml, etc.
If you are approaching WPF, and wonder which side start from,
than this video will help you a lot understanding what WPF offers to you.
It worth have a look.