• Books

C# Programming Language (2nd Edition) by Anders Hejlsberg, Scott Wiltamuth, Peter Golde Essential C# 2.0 by Mark Michaelis   C# Precisely by Peter Sestoft, Henrik I. Hansen   CLR via C#, Second Edition by Jeffrey Richter

• Standards and Guidelines

IDesign C# Coding Standard Microsoft .Net Design Guidelines   FxCop Standards Compliance Tool   C# Language Specification (ECMA)