Step by step screenshots-guide how to install [let’s share books] plugin:
Calibre is a free and open source e-book computer software application suite that organizes catalogs, fetch meta-data, saves and manages e-books, supporting a variety of formats. It also supports e-book syncing with a variety of popular e-book readers and will, within DRM restrictions, convert e-books between differing formats.
What makes Calibre great for amateur librarians is built-in web server which is usually used for transferring books from laptop (where you run Calibre) to e-book reader (e.g. Kindle, Android, IOS readers). It works only for LAN (Local Area Network). That means you can’t (by default) share your library on public internet.
[let’s share books] calibre plugin solves that.