Literature

Generic

• Illustrated C# - 2010
• C# Unleashed - Bart De Smet, 2010
• C# 5.0 in a Nutshell
• Programming C# 5.0
• The C# Programming Language - Anders Hejlsberg, Mads Torgersen, Scott Wiltamuth, 2010
• C# in depth

Multithreading

• Concurrency in C# Cookbook
• Threading in C# - Joseph Albahari, 2011
• Pro Asynchronous Programming with .NET, 2013

Unit testing

• Art of Unit Testing

Advanced

• CLR via C# (Advanced)