This book provides a comprehensive guide to the principles, patterns, and practices of Agile software development using the C# programming language. Written by Robert C. Martin, one of the most influential figures in software development, this book covers the fundamentals of Agile development, including Scrum
From Wikipedia
Robert Cecil Martin, colloquially called "Uncle Bob", is an American software engineer, instructor, and author. He is most recognized for promoting many software design principles and for being an author and signatory of the influential Agile Manifesto.