Al Gore has authored a sequel to An Inconvenient Truth called Our Choice. The book is available in print format and as an app. The app has been published by Push Pop Press, a new publishing company that challenging the traditional book format. Mixed media, interactive graphics and upgradeable content are some of the features that are available. Here is what Push Pop Press has to say about their approach.
Push Pop Press is a new digital publishing platform that’s redefining the way we publish and experience books. Using Push Pop Press authors can weave together text, images, audio, video and interactive graphics into immersive multi-touch interactive books, without dealing with the complexities and costs normally involved in software development. Push Pop Press is currently in private beta being used to build more amazing titles.