The book is a compact and easy to navigate text on the subject. It offers a quick and accessible reference for anyone who wants to know C# in detail. It is particularly useful for C# learners who are familiar with Java. 

This second edition has been updated and expanded, reflecting the evolution and extension of the C# programming language. It covers C# versions 3.0 and 4.0 (as covered in Microsoft Visual Studio 2010), and provides a look ahead at some of the innovations of version 5.0. In particular, it describes asynchronous programming as found in version 5.0.

The book describes C# in detail but informally and concisely, presenting lambda expressions, extension methods, anonymous object expressions, object initializers, collection initializers, local variable type inference, type dynamic, type parameter covariance and contravariance, and Linq (language integrated query), among other topics. It also provides more than 250 examples to illustrate both common use and subtle points. Two-page spreads show general rules on the left and relevant examples on the right, maximizing the amount of information accessible at a glance.

The complete, ready-to-run example programs are available at the book’s Web site, http://www.itu.dk/people/sestoft/csharpprecisely/

Preface
Notational Conventions
1. Compiling, Loading, and Executing C# Programs
2. Names and Reserved Names
3. C# Naming Conventions
4. Comments and Program Layout
5. Data and Types
6. Variables, Parameters, Fields, and Scope
7. Strings
8. String Builders
9. Arrays
10. Classes
11. The Machine Model: Stack, Heap, and Garbage Collection
12. Expressions
13. Statements
14. Struct Types
15. Interfaces
16. Enum Types
17. Delegate Types
18. Type dynamic (C# 4.0)
19. Nullable Types over Value Types
20. Exceptions
21. Threads, Concurrent Execution, and Synchronization
22. Task Parallel Library (C#4.0)
23. Asynchronous Methods: async and await (C#5.0)
24. Mathematical Functions
25. Input and Output
26. Generic Types and Methods
27. Generic Collections: Sets, Lists, and Dictionaries
28. Linq, Language Integrated Query (C# 3.0)
29. Namespaces
30. Partial Type Declarations
31. Assertions and the Debug.Asert Method
32. Attributes
33. Main Differences between C# and Java
34. Resources Index