I have read 2 DotNetNuke books and am still trying to find my way through the DNN maze. These videos and training bring everything to clarity. The step by step video approach makes even the hard concepts trivial. The videos are also perfect for working in short streches and make the most of your time.
The price of the joining is trivial for all the content and information you get in return. This is an amazing resource for the DotNetNuke developers and web designers.