The CSharp Language - accu-org/essential-books GitHub Wiki

These books cover the C# programming language and related tools.

C# in Depth (Jon Skeet)

Once you have the basics of the C# language under your belt you may find yourself wondering what all the various more advanced features are. As the title suggests this book takes you in great detail through the more recent language additions and shows you how many of them provide the foundations for the more marketable features like LINQ.