The exhibition 'About Trees' is interested in trees as a symbol and embodiment of the principles in the contemporary world. The artists allow them to "speak" through their works. Certain works in "About Trees" were made specially for this exhibition, such as the upside-down hanging birch-tree by Shinji Turner-Yamamoto in Museumsstrasse just in front of the exhibition entrance or the big mural by Paul Morrison. Valérie Favre and Katie Holten also painted or drew works especially for the occasion. One integral part of the exhibition is the action of planting ten new trees, which ZPK carried out on the day after the opening along with the architect Renzo Piano, as well as the extensive accompanying programme with many guests, all of which bring a special interest in trees.00Exhibition: Zentrum Paul Klee, Bern, Switzerland (17.10.15 - 24.01.2016)0.