Hello! Flex 4 progresses through 26 self-contained examples selected so you can progressively master Flex. They vary from small one-page apps, to a 3D rotating haiku, to a Connect Four-like game. And in the last chapter you'll learn to build a full Flex application called SocialStalkr'a mashup that lets you follow your friends by showing their tweets on a Yahoo map.
With this book, you learn Flex by osmosis. You can read the book and follow along even if you have never used Flex before. Consider it "Flex Immersion." You absorb the key concepts of Flex as you go through the process of building the application.
You will also learn how Flex and Rails integrate with HTTPService and XML, and see how RESTful Rails controller design gracefully supports using the same controller actions for Flex and HTML clients. The author will show you how Cairngorm can be used to architect larger Flex applications, including tips to use Cairngorm in a less verbose way with HTTPService to talk to Rails.