In 1962 Andersen first took part in one of the early concerts given by Fluxus held during the Festum Fluxorum in the Nikolai Kirke (Nicolas Church) in Copenhagen.
Eric Andersens most eminent works include: Hidden Paintings, Crying Spaces, Confession Kitchens (Mitologia della lingua, Lawns that turn towards the Sun, Opus 51 - I HAVE CONFIDENCE IN YOU, Mariane - Artificial Stars and PLEASE LEAVE.
In the year in which Copenhagen was Europe’s cultural capital, 1996, Andersen arranged a three-day event Margrethe Fjorden Intermedia festival.
Here he performed, among other things, the compositions: parachute-jumping, helicopters, mountaineering, live sheep and 500 singers walking on water.
Eric Andersen opposes those who describe Fluxus as an: art movement or -ism, as he points out that it was just a global network of artists, but that they had no common form of expression or goal.