ASP.NET 4 CMS–Book

I have looked for a book about CMS concepts and was excited to spot ASP.NET 4 CMS. As much as I was excited initially, that much I was disappointed as going through the book. Here a few things I did not find pleasant about it:

1. The book is not about CMS concepts and techniques. Vastly it’s about .NET 4.0 and tools the author wanted to talk about in order to share its own experience while building a CMS system.
2. Talking about new features of C# 4.0 and Visual Studio .NET 2010 in a CMS books is at least a waste of readers time.
3. Using WebForms and talking about clean mark-up (or Search Engine Optimization) was a bit of a slap in a face.

Either way, I am back to my search for a good book on CMS concepts and techniques.