Readium™, a project of the International Digital Publishing Forum (IDPF) and supporters, is an open source reference system and rendering engine for EPUB® publications. EPUB is the industry-standard open format for eBooks and digital publications. The latest version, EPUB 3, is based on Web Standard technologies such as HTML5, CSS, JavaScript, SVG, and the DOM. The overall aim of the Readium project is to ensure that open source software for handling EPUB 3 publications is readily available, to accelerate adoption of EPUB 3 as the universal, accessible, global digital publishing format.