As photography was not enough to fully describe the richness and uniqueness of the different species and types of forests, this dreamy scientist has been sketching trees around the world, from their tops to their roots, with a pencil for over half a century.
As privileged witnesses of his years of active observation, his sketches, forest profiles, and other tree works, with their precise and meticulous aesthetics, certainly contribute to enriching our vision of the living world.