Web developers and application developers are buzzing about Adobe's new AIR runtime and the amazing possibilities it offers for bridging the gap between rich online content and the desktop. But exactly what is Adobe AIR, and how best to use it? The answer depends on what development platform you're coming from - Ajax? Flash/Flex/ActionScript? Other? - and on your understanding of how PDF, HTML, JavaScript, Flash and other tools all work within Adobe AIR. And while a raft of resources are being released that come at Adobe AIR from myriad points of view, no single book provides the single, solid foundation of how Adobe AIR works and how to develop with it, that O'Reilly's "Adobe AIR in a Nutshell" does.