As Giuseppe Penone reveal in his work on finger prints, the graphic extension is a similarity between wood stripes and finger prints, that show the life of the tree.

Wood as a construction material, the question of movements depends on the atmospheric conditions.

With print making technic, those movements, cracks appear graphically as white, black, failure ; and shows multiple different state with ink, and so different graphic de-sign.

The form showed is an instant state, it is forces, life, put to sleep.