This book will help you acquire solid knowledge and many hands-on programming skills in Visual C# one of the main .NET programming languages. It covers the fundamentals of Visual C# programming and Visual Studio .NET development tools. When you complete this book, you will be able to design powerful programs; understand Visual C# data types and variables; use ADO .NET components to program application data access; analyze application error types and ways to prevent them; and use Visual Studio to debug applications. This book provides simple descriptions and explanations of the main object-oriented concepts and their practical uses. Once you have designed and tested a project, you need to know how to install and deploy it on the end user machines. The book shows you how to create setup projects and publish the application using the ClickOnce technology. Each chapter in this book is accompanied by a relevant lab project that will allow you to consolidate your knowledge and practice your new skills. Associate Professor Souleiman Valiev holds a Ph.D. in Computer Linguistics. He is a computer consultant of Fortune 500 companies in New York and the author of several books on Microsoft programming languages.