Sigil - Sigil is a multi-platform WYSIWYG ebook editor. It is designed to edit books in ePub format.
Lulu - Whether you're a teacher, photographer or hobbyist, share your expertise. Create & self publish your book today!
Jutoh - Epub editor, convertor and creator software for Mac and PC.
IngramSpark - IngramSpark is an Online publishing services provider platform that allows you to publish or print books that are in high quality, and its global distribution service enables you to post and share around the globe.
calibre - Ebook manager, viewer & converter
Blurb - Create and self-publish books, magazines & ebooks