Table of Contents (4th edition)

Here's a more detailed table of contents for the third edition of C# in Depth than the "about" page can reasonably be expected to provide.

Part one

Part one provides a brief history of the language.

Chapter 1: C# in Context

1.1 An evolving language
1.2 An evolving platform
1.3 An evolving community
1.4 An evolving book

Part two

Part two describes C# versions 2 through 5. This is effectively a rewritten and condensed form of the third edition of this book.

Chapter 2: C# 2

2.1 Generics
2.2 Nullable value types
2.3 Simplified delegate creation
2.4 Iterators
2.5 Minor features

Chapter 3: C# 3: LINQ and everything that comes with it

3.1 Automatically implemented properties
3.2 Implicit typing
3.3 Object and collection initializers
3.4 Anonymous types
3.5 Lambda expressions
3.6 Extension methods
3.7 Query expressions
3.8 The end result: LINQ

Chapter 4: C# 4: Improving interoperability

4.1 Dynamic typing
4.2 Optional parameters and named arguments
4.3 COM interoperability improvements
4.4 Generic variance

Chapter 5: Writing asynchronous code

5.1 Introducing asynchronous functions
5.2 Thinking about asynchrony
5.3 Async method declarations
5.4 Await expressions
5.5 Wrapping of return values
5.6 Asynchronous method flow
5.7 Asynchronous anonymous functions
5.8 Custom task types in C# 7
5.9 Async main methods in C# 7.1
5.10 Usage tips

Chapter 6: Async implementation

6.1 Structure of the generated code
6.2 A simple MoveNext() implementation
6.3 How control flow affects MoveNext()
6.4 Execution contexts and flow
6.5 Custom task types revisited

Chapter 7: C# 5 bonus features

7.1 Capturing variables in foreach loops
7.2 Caller information attributes

Part three

Part three describes C# 6 in detail.

Chapter 8: Super-sleek properties and expression-bodied members

8.1 A brief history of properties
8.2 Upgrades to automatically implemented properties
8.3 Expression-bodied members

Chapter 9: Stringy features

9.1 A recap on string formatting in .NET
9.2 Introducing interpolated string literals
9.3 Localization using FormattableString
9.4 Uses, guidelines and limitations
9.5 Accessing identifiers with nameof

Chapter 10: A smörgåsbord of features for concise code

10.1 Using static directives
10.2 Object and collection initializer enhancements
10.3 The null conditional operator
10.4 Exception filters

Part four

Part four addresses C# 7 (all the way up to C# 7.3) and completes the book by peering a short distance into the future.

Chapter 11: Composition using tuples

11.1 Introduction to tuples
11.2 Tuple literals and tuple types
11.3 Tuple types and conversions
11.4 Tuples in the CLR
11.5 Alternatives to tuples
11.6 Uses and recommendations

Chapter 12: Deconstruction and pattern matching

12.1 Deconstruction of tuples
12.2 Deconstruction of nontuple types
12.3 Introduction to pattern matching
12.4 Patterns available in C# 7.0
12.5 Using patterns with the is operator
12.6 Using patterns with switch statements
12.7 Thoughts on usage

Chapter 13: Improving efficiency with more pass by reference

13.1 Recap: What do you know about ref?
13.2 Ref locals and ref returns
13.3 in parameters
13.4 Declaring structs as readonly
13.5 Extension methods with ref or in parameters
13.6 Ref-like structs

Chapter 14: Concise code in C# 7

14.1 Local methods
14.2 Out variables
14.3 Improvements to numeric literals
14.4 Throw expressions
14.5 Default literals
14.6 Nontrailing named arguments
14.7 Private protected access
14.8 Minor improvements in C# 7.3

Chapter 15: C# 8 and beyond

15.1 Nullable reference types
15.2 Switch expressions
15.3 Recursive pattern matching
15.4 Indexes and ranges
15.5 More async integration
15.6 Features not yet in preview
15.7 Getting involved