Books & Reference

FBReader
CoolReader
Readerware
Calibre
Foliate
Bookworm
Buka
Okular
Koodo reader
KOReader
Libation
Kiten
Htmldoc
Peruse
GNOME Recipes
Mdbook
ScanTailor
Heb12 Bible
Mcomix-tabetai
Fluent Reader