From Eric Ligman (Microsoft):
FREE Microsoft eBooks! Who doesn’t love FREE Microsoft eBooks? Well, for the past few years, I’ve provided posts containing almost 150 FREE Microsoft eBooks and my readers, new and existing, have loved these posts so much that they downloaded over 3.5 Million free eBooks as of last June, including over 1,000,000 in a single week last year (and many, many more since then).
Get a free list of Microsoft eBooks at http://blogs.msdn.com/b/mssmallbiz/archive/2014/07/07/largest-collection-of-free-microsoft-ebooks-ever-including-windows-8-1-windows-8-windows-7-office-2013-office-365-office-2010-sharepoint-2013-dynamics-crm-powershell-exchange-server-lync-2013-system-center-azure-cloud-sql.aspx