Recommendation for an eBook reader for Gnome
A couple of others are Cool Reader and AZARDI. Lucidor was another, but development stopped and the website is down (although you can still find the debs e.g. here). In my opinion AZARDI is the best of these.
Update: Lucidor seems to be back in development and its website is back online.
Calibre comes with an application called E-Book Viewer. I just ended up discovering that after installing Calibre, and it's both light weight and supports most major formats.
I recently came across a decent eBook reader for GNOME (or any desktop environment based on GTK) called Foliate. It relatively new, and currently under active development, yet it has a lot of interesting features:
- It supports .epub, .mobi, .azw, and .azw3 files
- Reading progress slider with chapter marks
- Quick dictionary lookup with Wiktionary, Wikipedia, and dictd, or translate a text with Google Translate
- Touchpad gestures
- Basic text-to-speech support with eSpeak NG and Festival
