Programs: books

From wikinotes

There aren't a lot of software packages to manage books, but calibre does the job particularly well.

Book Readers

xchm Reads microsoft help files (.chm)
kchmviewer Reads microsoft help files (.chm), better formatting than xchm
evince A PDF reader
okular A PDF reader
FBReader epub/mobi reader
mcomix comic book reader
zathura pdf/comic book reader with vi-style keybindings

Book Managers

calibre content server, exposes OPDS
kavita book and comic reader/server
emby not it's core-focus, but emby technically has a section to manage books.

OPDS Clients