AirDrop allows two ios devices in close proximity to share Gutenberg books anywhere without using Data or WiFi.
To enable AirDrop:
1. Go to your device control center (slide your finger upwards from below the bottom of the screen);
2. Tap AirDrop and select 'Everyone' (your life will be a lot easier and you can change the selection anytime);
3. Repeat step 2 for all ios devices involved (receiving or sending);
4. Now follow steps to export your books and notes;