Eric Ligman is a Microsoft Sales Excellence Program Manager and he just posted (today) a very helpful article on his blog. Last year, he listed a series of free Microsoft eBooks and he decided to update it again for this year.
What I really like about both of his list of free books is that he listed out numerous Microsoft Server technologies, like Office/Office365, SharePoint, SQL Server, System Center, Visual Studio, Web Development, Windows, Windows Azure and Windows Server. Additionally, he also list numerous formats, such as PDF, EPUB and MOBI to allow you to read it on your favorite reader.
Please note: Unencrypted Mobipocket books can be read on the Amazon Kindle natively, as well as in Amazon Kindle programs on Mac OS X, the iPhone, Android devices, Windows, and Windows Phone devices. Kindle devices do not support the EPUB file format used by many other e-book readers. Instead, they are designed to use Amazon’s own e-book formats: AZW and, in later devices, KF8.
Without further ado, here is a grand list of free eBooks from Microsoft listed here for 2013.