The document is a presentation about SeaJS, a JavaScript module loader. SeaJS allows developers to load modules asynchronously and manage dependencies between modules. It also supports features like LESS and CoffeeScript compilation out of the box using the SPM (SeaJS Package Manager). SeaJS aims to be more than just a module loader by providing tools for building entire JavaScript applications and workflows. The presentation encourages attendees to check out the SeaJS documentation website for more information.