When working with the yFiles for Silverlight Viewer library component, the most important thing to understand is how the classes, and the functionality they provide, divide according to the Model-View-Controller paradigm.

Consequently, Chapter 2, Displaying and Editing Graphs is the most important chapter to read. It explains this division and describes the underlying graph structure implementation and the possibilities for the visual representation of all kinds of model items therein. It also presents the available view implementations that display a model, and discusses the comprehensive support for user interaction and how to customize it.

The remainder of the chapter presents the printing support and discusses the animation framework. This section can be equally skipped the first time in favor of Chapter 5, Architectural Concepts, for example. Read this chapter to learn about the essential look-up mechanism that is used by yFiles for Silverlight and also about the concept for binding custom data to model items.

Additional functionality that is related to grouped graphs is presented in Chapter 3, Graph Hierarchies. Essentially, this chapter is an "extension" to Displaying and Editing Graphs, and hence should be read after it.

The I/O support of yFiles for Silverlight, including image export functionality, is described in Chapter 4, Input and Output. Note that this chapter is largely independent of any other parts of this document and can easily be skipped the first time.

Appendix A, Obfuscation is a must-read concerning the actual deployment of any product developed using the yFiles for Silverlight library. It discusses the code protection requirements of the yFiles for Silverlight license terms and helps in understanding how to fulfill them properly.

The information in Appendix B, License Mechanism is equally important, but relevant also for software development since it explains how to use yFiles for Silverlight license files in yFiles for Silverlight-based applications.