The Silverlight 4 platform continues to add excitement to building rich Internet applications (RIAs), and it offers new user interface controls, expanded capabilities of the Base Class Libraries, and new libraries for building Line of Business applications. This invaluable resource helps you take your existing development skills to the next level so that you can create compelling RIAs with the new Silverlight 4. The trio of veteran authors presents clear and concise coverage of Silverlight essentials and its platforms concepts, while real-world samples enhance your learning process so you can get started building and running RIAs right away