''C# in Depth'' is a completely new book designed to propel existing C# developers to a higher level of programming skill. One simple principle drives this book: explore a few things deeply rather than offer a shallow view of the whole C# landscape. If you often find yourself wanting just a little more at the end of a typical chapter, this is the book for you.

Expert author Jon Skeet dives into the C# language, plumbing new C# 2 and 3 features and probing the core C# language concepts that drive them. This unique book puts the new features into context of how C# has evolved without a lengthy rehearsal of the full C# language.

''C# in Depth'' briefly examines the history of C# and the .NET framework and reviews a few often-misunderstood C# 1 concepts that are very important as the foundation for fully exploiting C# 2 and 3. Because the book addresses C# 1 with a light touch, existing C# developers don't need to pick through the book in order to find new material to enhance their skills.

This book focuses on the C# 2 and 3 versions of the language, but clearly explains where features are supported by changes in the runtime (CLR) or use new framework classes. Each feature gets a thorough explanation, along with a look on how you'd use it in real life applications.

''C# in Depth'' is both a vehicle for learning C# 2 and 3 and a reference work. Although the coverage is in-depth, the text is always accessible: You'll explore pitfalls that can trip you up, but you'll skip over gnarly details best left to the language specification. The overall effect is that readers become not just proficient in C# 2 and 3, but comfortable that they truly understand the language.