The document discusses a project using DITA and other XML technologies to create a series of books on various topics. The project aims to provide a common vocabulary for different disciplines and demonstrate the value of intelligent content and supporting technologies like DITA and DocBook. Contributors will provide content that is converted to different formats and published as print, ebooks, and a website using an expeDITA DITA to DocBook conversion and publishing process. The document outlines the book structure, deliverables, production process, and asks for any questions.