This can be by doing:

1. Read All — Read per term — Practice — Read
2. Read per term — Practice — Read

Recipe no. 1 is good to fast knowing the whole behind the C# concepts, features, and the dis/advantages. Then walk through all iterations of chapter one-by-one coincided by practice (write, run, debug).

How to read each term:

1. What is this/that
2. Breakdown of all available child on the step of no. 1
3. Got example implementation took have good understood
4. Careful about feature limitations

Terms:

• Base Class Library (BCL)
• Common Language Runtime (CLR)
• Namespace statement
• Assemblies
• Basic Data Types
• Value Types
• References Types
• Boxing
• Unboxing
• Class
• Struct
• Interface
• Statements
• Enums
• Delegates
• Events
• Properties
• Indexers
• Accessors
• Attributes
• Reflections
• Integrated Language Disassembler (ILDASM)
• Decompilers
• Obfuscators
• Native Image Generator (NGEN)
• Just-in-Time (JIT)
• Field
• Instance
• Garbage Collector
• Field Naming Conventions
• Data Member
• Constructor
• Member Functions
• Ref and Out parameters
• Overloading
• Base Class
• Inheritance
• Derivation
• An array of inheritanced function
• Virtual Functions
• Override
• Abstract Class
• Sealed
• Try-Catch
• Passing Exceptions
• Caller Beware
• Caller Confuse
• Caller Inform
• Finally
• Accessibility
• Modifier
• Visibility
• Parameter
• Argument
• Hiding
• Cast
• Implicit Convention
• Variable – Length Parameter
• Default Argument
• Named Argument
• Nested Class, Interface, Delegate, Struct, Enum
• Anonymous Type
• Constructor
• Initialization
• Allocation Memory
• Mark and Compact
• Generation
• Finalization
• Static Field, Function, Constructor, Constant
• Read Only Field
• Extention Method
• Object Initializer
• Static Class
• Partial
• Mutable
• AS Operator
• Versioning and Aliases
• Selection Statement
• Jump Statement
• Lock
• Checked and Unchecked
• Yield
• Definite Assignment
• Operator
• Array
• Automatic Properties
• Constraints
• Generic
• Reflection
• read more https://www.visualstudio.com/license-terms/ecma-c-common-language-infrastructure-standards/

Image source: docs.microsoft.com