Learn how to open and read EPUB book files on your iOS device and go through some solutions if an EPUB file fails to open. EPUB ( short for electronic publication) is one of the most popular e-book formats that’s supported by nearly all e-book reader devices and apps, including Apple’s Books app. How to view an EPUB file on iOS Download the EPUB file from Safari and tap it in the Downloads section. It should open directly to the Books app. If the EPUB file is saved in iCloud Drive or the On My iPhone/iPad section of the iOS Files app, tap it, then tap Copy to Books . Note: Book titles you add to your library and download in the Apple Books app on your device are also in EPUB format. If there is a small cloud icon under the book thumbnail, that means the title is added to your library but not downloaded for offline reading. Simply tap the three-dot menu icon , then select Download to read it offline.…