Online reader and content editor that allow to publish content in epub format and read it online in Progressive Web Application.Content editor implemented on wordpress gutenberg editor and allow user: edit content and manage media files; manage footnotes and insert/update/delete it in content;manage glossary and insert/update/delete links on it in content manage index and insert/update/delete links on it in content. Reader implemented on Angular as PWA and allow user: read content, footnotes, glossary, index; navigate over document by chapters or via table of content or via glossary or via index or via links; search by content, glossary, index; highlight content and save custom notes with attachments; bookmark chapters and save it in collection; download chapters as PDF with or without notes.