Mailing the story:
Bookworm: A Simple yet Magnificent eBook Reader for Linux
If you are looking for an effective eBook reader for Linux, Bookworm will serve your purpose. Bookworm is an open source eBook reader with an easy and simple layout supporting different file formats like epub, pdf, mobi, cbr and cbz. Supporting cbr and cbz files mean that you can also use it for reading comics on Linux.