Discover how easy RIA development can be with this one-of-a-kind handbook from the Adobe Developer Library. Several clear, step-by-step mini-tutorials teach you about web services, event handling, designing user interfaces with reusable components, and more. After finishing this guide, you'll be able to build Flash applications ranging from widgets to full-featured RIAs using the Flex SDK and Flex Builder 3.0 -- whether you come from an open source or Visual Studio-intensive background.