Professional C# (.NET): Advanced Techniques

The book "Professional C# (.NET): Advanced Techniques" is intended for developers who already write confidently in C# and want to move to the next level. This is not another introduction to syntax — it is a deep dive into the mechanisms of the .NET platform that usually remain "behind the scenes" in everyday development.

The author, Andrey Volkov, focuses on practical scenarios where standard approaches are insufficient: high-load server applications, processing large volumes of data, working with unmanaged code, and fine-tuning the garbage collector.

What you will learn from the book:

• Asynchronous programming without myths: ValueTask, IAsyncEnumerable, configuring SynchronizationContext, error handling in async/await, and debugging asynchronous stacks.
• Reflection and code generation at runtime: Expression Trees, building IL code via System.Reflection.Emit, creating dynamic proxies and AOP (aspect-oriented programming) without third-party libraries.
• Unsafe code and memory management: pointers, Span<T> and Memory<T>, stackalloc, pinning objects, interacting with native libraries via P/Invoke and COM Interop.
• Performance and profiling: allocation analysis, combating boxing/unboxing, LINQ optimization, using BenchmarkDotNet, GC tuning (Workstation vs Server, Latency modes).
• Advanced C# 10/11/12 features: record struct, required members, string interpolation in high-performance code, file-scoped types.

Who this book is for:

• C# backend developers working with high-load systems.
• Unity game developers wanting to understand CLR and optimization more deeply.
• Engineers transitioning from Java or C++ to the .NET platform.
• Anyone who wants to write not just working code, but fast and reliable code.

There is no fluff in the book — only concentrated information with code examples that can be immediately applied in real projects. Each chapter ends with a practical task and a checklist for self-assessment.

After reading, you will be able to read and modify IL code, design efficient asynchronous pipelines, avoid memory leaks, and find performance bottlenecks without a profiler. This is a must-read for those who want to become an expert in C# and .NET.