[$] Catching up with calibre

Saying that calibre isebook-management software undersells the application by a fairmargin. Calibre is an open-source Swiss Army knife for ebooks that canbe used for everything from creating ebooks, converting ebooks fromobscure formats to modern formats like EPUB, to serving up an ebooklibrary over the web. The most recent major release, calibre8.0,brings a better text-to-speech engine, a tool for creating audiooverlays when authoring ebooks, support for profiles in the ebookviewer, and more.