Poland

A form of art where the spectator is involved by the artist to achieve the art's purpose. This can be done by letting the visitor or observer "walk" around, in and on the art installation. Others may ask the spectator or the artist to become part and parcel of their artwork. Works in this category often feature computers, sensors and interfaces to respond to meteorological changes, heat, motion or other input types programmed by the maker to respond to by them.

Found object is the term used for a man-made or natural object, or object fragment which an artist either finds or buys, keeping it for inspiration or as a work of art. The artist may also modify it, or use it for collage or assemblage.

Animation is the term used to describe the process of showing sequences of static images in quick succession to create the illusion that the images are moving. Illustrators painstakingly drew separate images, slightly changing the moving parts with each image creating a movement series.