Demystifying C# 3.0 - Sahil Malik's series 29. September 2006 Galcho .NET Development (0) MS MVP Sahil Malik wrote nice serie of short articles about C# 3.0 a) Demystifying C# 3.0 - Part 1: Implicitly Typed Local Variables "var"b) Demystifying C# 3.0 - Part 2: Anonymous Typesc) Demystifying C# 3.0 - Part 3: Extension Methodsd) Demystifying C# 3.0 - Part 4: Lambda Expressionse) Demystifying C# 3.0 - Part 5: Object and Collection Initializersf) Demystifying C# 3.0 - Part 6: (LINQ) Query Expression Translation (to C# 3.0)g) Demystifying C# 3.0 - Part 7: Expression Trees These topics are very good described. Enjoy