The document summarizes Pubu, a digital publishing platform that allows anybody to publish and share ebooks. It offers a reader app for PC, smartphones, and tablets that supports ePub and PDF formats with Social DRM. The document discusses features of the Pubu reader, considerations for the future of ePub, and usage statistics from July 28 to August 10 which show over 1000 publications and 500 active users who on average read 0.78 files per user, with 82% of files in ePub format.