Windows 7 User Guide from Microsoft

Microsoft released Windows 7 IT Pro Guides which explains about Windows 7 and their features.

Windows 7 IT Pro Guide consists whats new feature in Windows 7 which includes information about DirectAccess, BranchCache and other networking technologies, VHD boot and other deployment technologies, and AppLocker, Biometrics, and other security technologies.
Windows 7 IT Pro Guide includes Windows 7 Manageability Overview Guide, covering the manageability improvements that can reduce total cost of ownership by helping to increase automation, improve user productivity, and provide flexible administrative control to meet compliance technologies.
Download Windows 7 IT Pro Guide in (.doc) format