Sigil - Sigil is a multi-platform WYSIWYG ebook editor. It is designed to edit books in ePub format.
FlippingBook - FlippingBook changes the way you present your documents
Jutoh - Epub editor, convertor and creator software for Mac and PC.
Scribd - Unlimited books, audiobooks & comics. Unparalleled discovery. Any device. $8.99/month
calibre - Ebook manager, viewer & converter
Joomag - Joomag is the all-in-one digital publishing platform empowering businesses large and small to create, distribute, track, and monetize their interactive content.