Trees are special: without them we would not be able to exist. For Frédéric Back, trees are extraordinary things, ambassadors of the miracle of life. From the farthest reaches of their roots to the tips of their leaves, they transform water and light into something marvellous. Intermediaries between the sky and the earth, their infinite variety reflects the patient work of evolution over millions of years. Every tree converts depleted soil into fertile humus, purifies the air, prevents erosion, tempers the climate, and multiplies a hundredfold the area it covers. The result is shelter and nourishment for thousands of other life forms, engendering the incalculable richness and diversity of this world. “Benefactors, masterpieces, symbols of endurance”, trees populate the forests whose great age, size and benefits to humanity have always been a source of inspiration and a place to commune with the beauty of creation.