There is a new book on "Understanding Microsoft Virtualization Solutions" by Mitch Tulloch with the Microsoft Virtualization Teams,
available from Microsoft Press as a download.
At 400 pages and 15MB, this PDF file covers Server Virtualization (Hyper-V), Virtual Machine Manager (VMM), Presentation Virtualization (Terminal Services), Application Virtualization (App-V), Desktop Virtualization (MED-V), Virtual Desktop Infrastructure (VDI) and User State Virtualization (Roaming Profiles, Folder Redirection and Offline Files).
You do have to register with a Windows Live ID to download the full book, but there is no cost.
Go get it from http://csna01.libredigital.com/?urmvs17u33