Flex 4 is the new version of Adobe's revolutionary rich internet application development environment, and this book covers all the basic and advanced topics needed to master Flex 4. Whatever level the reader is in Flex development, they will gain a great deal from this book - it covers everything from installation and environment basics through language essentials, to advanced topics such as charting components and connecting to server-side environments such as ColdFusion and .NET. Rather than being a mere beginner's book or reference guide, this book provides a very thorough learning guide, including all the new features that come with Flex 4.