C# is Microsoft's new object-oriented language, specifically designed to take full advantage of the .NET type system. At the heart of .NET programming in C# is the task of building classes. All C# code participates in the .NET type system, because all code is contained in classes and other types that participate in the class hierarchy of the .NET Framework.

This book is a guide to help you design these classes effectively, by looking at what control we have over our classes, and how C# turns our class definitions into executable code.