本书是一部好评如潮的语言参考书，作者由浅入深地介绍了c#语言的各个方面。全书共包括21章及6个附录，每章开头的“思维导图”指明了本章要讨论的主题，以及各个主题之间的层次关系。书中所包含的丰富的示例代码和精要的语言比较，都有助于读者理解c#语言。本书首先介绍了c#语言的基础知识，随后深入讲解了泛型、迭代器、反射、线程、互操作性和语言集成查询(linq)等高级主题，还涉及了动态编程、使用tpl进行多线程编程以及用plinq进行并行查询处理等c# 4.0新增内容，此外还介绍了与这些内容相关的隐式类型变量、扩展方法、分部方法、lambda语句和表达式、标准查询操作符和查询表达式以及并发集合等内容。-Essential C# 4.0 is a well-organized,“no-fluff” guide to all versions of C# for programmers at all levels of C# experience. This fully updated edition shows how to make the most of C# 4.0’s new features and programming patterns to write code that is simple, yet powerful.

This edition contains two new chapters on parallel programming, multi-threading, and concurrency, as well as extensive coverage of new C# 4.0 features: dynamic typing, variance, optional/named parameters, and many other new topics.