This book covers XAML as it exists in the WinFX SDK (Community Technology Preview, October 2005). It covers core XAML constructs and discusses syntax as it relates to interfacing with the WinFX runtimethe WPF. The book provides examples and documentation of all core components and presents detailed discussions on features such as animation, resources, and layout that will jump-start you on your way to becoming a XAML developer.
There are already several flavors of XAML, each created to enable the design of user interfaces for a specific Windows API, such as Windows Workflow Foundation. This book focuses on the core XAML language as intended for use in building user interfaces for Avalon and will not explore API-specific subsets.