Bookle

Bookle is a simple, elegant EPUB book reader, designed from the ground up to let you read your EPUB-formatted books without getting in your way.

Bookle collects your books into its library, providing instantaneous single-click access to any title, and remembering where you left off in every book. Simple, efficient navigation controls (using the mouse, trackpad, or keyboard) let you read without distraction. You can switch between books in a single window, or open multiple windows to refer to several books simultaneously. Bookle can even read your books aloud to you.