The principle designers of the C# language (Anders Hejlsberg, Mads Torgersen, Scott Wiltamuth, and Peter Golde) have produced a third edition of their popular book, “The C# Programming Language”. Addison-Wesley, 2009, ISBN 978-0-321-56299-9.
This edition maps directly to V3 of Microsoft’s Visual C# compiler (http://www.microsoft.com/express/download/), and covers the features added in that release: query operators, compact lambda expressions, extension methods, and runtime access to expression trees.
Although V2 was standardized through Ecma (http://www.ecma-international.org/publications/standards/Ecma-334.htm) and then through ISO, the new features for V2 were simply added to the standard as separate chapters. However, the 3rd edition of the book not only contains the new V3 materials, it also integrates the V2 material into the appropriate chapters. This book is a must-have for all serious C# programmers.

