He brings drawing, animation, film, video and computer graphics together around a central theme and puts the art of drawing in a wider perpective by initiating all kinds of projects.
In his opinion drawing is almost universal, everybody has made a drawing at one time.
Drawing is the only medium that is not time-related, wether it takes two minutes or two weeks to make, a drawing always keeps a fresh, tangible quality as if made yesterday.
Whereas in painting and photography you can clearly see when the work was made, in drawing there is hardly any difference in technique between a prehistoric drawing and a modern cartoon. Also, a drawing is not necessarily art, you will find powerful drawings outside the art context as well.
Onnen published the book/magazine Volume in which a large number of drawn heads made by different artists from different periods is shown.
He then took this concept a step further by making an exhibition of moving heads and portraits and eventually the viewer was given the opportunity to zoom in on a face and thereby creating a certain intimacy.