Master functional programming techniques in C# with "Functional Programming in C#, Second Edition" by Enrico Buonanno. This practical guide dives into real-world examples and techniques, helping you reduce code duplication with higher-order functions, write easily testable and optimizable code using pure functions, and create pleasant, descriptive APIs. Learn to handle nullability, system errors, and validation rules predictably with dedicated types, and write composable code without the overhead of an IoC container. This second edition is fully updated for the latest C# features like tuples, async streams, pattern matching, and records. Unlock the power of functional thinking to improve concurrency, state management, event handling, and software maintainability. The book covers core techniques like designing function signatures, modeling the absence of data, and function composition, as well as advanced topics such as functional error handling, stateful programs, and asynchronous computations. All code examples are compatible with .NET 6 and C# 10. Summary: Functional Programming in C#, Second Edition, Paperback, English, 448 pages, by Enrico Buonanno, published by Manning Publications.