Downloading the guides from Microsoft can sometimes be a project in itself, due to the file type causing security red flags on a companies network. I have grabbed the latest guides as of 1/30/2013 and zipped them up for easy download.
These downloadable .chm files contain the latest guidance for installing or administering Team Foundation Server (TFS) 2012. The TFS 2012 install guide includes instruction for installing Team Foundation Server, Team Foundation Server Proxy and Team Foundation Build Services. The TFS 2012 administration guide includes instruction for configuring and managing servers running TFS 2012.
TFS 2012 Install Guide (Zipped Package)
http://www.microsoft.com/en-us/download/details.aspx?id=29035 (Microsoft Direct Download)