It can be anything from retouching and repairing your favourite photos to making kittens pilot starships through unknown galaxies past battle stations bent on their imminent destruction.

Just take a photo, digitise it if it isn't already, and alter it using photo software. It can become a realistic merging of two or more photos or a flight of fancy that sets your mind askew.

The important thing is to have good clean fun, and use your imagination!