"Beginning Silverlight 5 in C#" is a technical book that focuses on the latest version of Microsoft Silverlight technology, which is significant for the development of Web 2.0 applications. At a time when expectations for the design and functionality of websites are increasing, this book provides a comprehensive introduction to the design tools and techniques necessary for creating high-quality web applications. Author Robert Lair guides readers through the various tools used for developing Silverlight applications, including Microsoft Expression Design, Expression Blend, and Visual Studio. These tools are essential for creating user interfaces and facilitating interaction between designers and developers. The book not only offers practical guidance but also deeper insights into the new features of Silverlight 5, such as H.264 protected content and support for the Managed Extensibility Framework. It is a valuable resource for anyone looking to dive into the world of web application development.