Calibre

Calibre [1] is a very nice eBook reader and manager.

Unfortunately in Ubuntu the available version (4.99) does not work. It reports:

RuntimeError: Failed to load the progress_indicator C extension, with error: PyCapsule_GetPointer called with incorrect name

You can install the latest version from the Calibre website using:

sudo -v && wget -nv -O- https://download.calibre-ebook.com/linux-installer.sh | sudo sh /dev/stdin

That works like a charm.