More Effective C# by Bill Wagner is a follow-up to the 2005 book Effective C# and includes 50 additional ways to improve your C# code.

More Effective C# was published in 2008 and is current through C# 3.0 (.NET 3.5) including sections on the C# 3.0 language enhancements and LINQ.

This book should be on your desk, right next to Effective C#! As the back cover says, "You're already a successful C# programmer - this book can help you become an outstanding one".

Effective C# by Bill Wagner is a great book which "... identifies fifty ways you can start leveraging the full power of C# in order to write faster, more efficient, and more reliable software".

Originally published in 2005, Effective C# covers tips applicable to C# 1.0 (.NET 1.x), with a few brief glimpses at .NET 2.0.

More Effective C#, released in 2008, includes 50 more tips and is current for C# 3.0 (.NET 3.5).

You will learn a lot about C# by reading this book and truly understanding the reasoning behind each of the tips - some are as simple as "prefer ForEach loops" to the more complex "prefer declarative to imperative programming".

Every serious C# programmer should have a copy of this book!

C# in Depth, by Jon Skeet is an excellent book for existing C# developers who want to take their skills to the next level.

This book is a great resource for experienced beginners who want to gain a deeper understanding of the "hows" and "whys" of some of the more advanced features of the language and even proficient developers will learn many of the finer nuances of C#.

Part I of the book provides some background and history on the initial development of C# and also reviews some of the key features of the language.

Part II discusses the enhancements made in C# 2.0 (which was released along with Visual Studio 2005 and .NET 2.0). These features are introduced in such a way that shows the natural evolution of the language and how the features solved issues or eased development compared to C# 1.0.

Part III then applies the same approach to introducing the many new language features in C# 3.0 (which was released along with Visual Studio 2008 and .NET 3.5).

What I really like about this book is how it presents the features of C# as an evolution and explains not just how to use the features, but why the were added in the first place. For those of us who have been working with C# since the beginning, it is very refreshing to take a step back and look at the big picture and see how we got to where we are. For the beginning developer, it's always helpful to understand the context in which a feature is introduced and what types of problems it was intended to solve.

- Ken