How to Put a Digital Book (ePub File) on Your Device (iPhone, iPad, Android, Kindle)

If You're Using Apple Books on Mobile Devices

• Download the EPUB from its website to your iPhone or iPad. This is typically into a “Downloads” folder in the Files App.

• Tap the File and it will immediately open in Apple Books

If You're Using Kindle App on Mobile Devices

• Download the EPUB from its website to your iPhone, iPad, or Android device. This is typically into a “Downloads” folder.

• Press and hold on the file name to reveal the Share Menu

• Tap the icon for the Share Menu

• Select the Kindle App to send the EPUB. In some cases, you may need to click the “More …” button to see the Kindle App.

Here’s a more detailed tutorial from How to Geek.