If you're looking to Download EPUB Reader on your Chromebook laptop Then read the following guideline.

EPUB Reader is a lightweight EPUB (electronic publication) document/ebook reader. Highlight/annotation/bookmark are now supported! * Features • Lightweight and fast • Highlight/annotation/bookmark • Shortcuts to navigate through the pages • Zoom in / zoom out • Scroll-based page layout • Full screen mode • Automatically remember the reading position • Export to PDF (with table of contents) * Keyboard shortcuts • Next page: Command-Shift-Right arrow • Previous page: Command-Shift-Left arrow • Zoom in: Command-+ • Zoom out: Command-- • Standard size: Command-0 • Go back: Command-[ • Go forward: Command-] • Toggle sidebar: Shift-Command-T Note: Only DRM-free .epub books are supported.