Today I discovered, by accident, that Kobo e-readers have a feature I’ve wished they had for years: an image viewer.

Double tap on an image in a book or Pocket article to open a full-screen image viewer that lets you zoom, pan, and rotate.

This is the only place I know of where the Kobo interface uses a double-tap — usually, it’s a single tap, a swipe, or a long press — which is probably why I never noticed the feature before.