Agile Software Development with C# and Visual Studio 2026 Fifth Edition

This beginner¿friendly book introduces the essentials of agile software development using C#. Although many resources cover C# or agile practices separately, few integrate them into a single, cohesive learning path. Each chapter blends both topics so you can understand how agile principles shape real C# development. By the end, you will complete several small projects that apply these ideas in practice. Working with a small group-such as classmates-can further deepen your understanding. This book is intentionally concise and not meant to serve as a comprehensive reference. It focuses on core concepts suitable for newcomers rather than providing exhaustive detail. To get the most from the material, you are expected to type all code examples yourself; the hands¿on experience is essential for building real skill. Exercises labeled "Programming Challenge" and "Test Your Understanding" appear throughout the chapters, and completing them will greatly reinforce your learning. This fifth edition uses Visual Studio 2026 Community. Last but not least, we thank Dr. Youlong Zhuang for reviewing this edition and providing valuable suggestions.