El Anatsui (Ghanaian b. 1944), "Learned Papers", 2012, overbeaten flax on the left with cotton pulp sprayed on the right, overbeaten abaca reinforced certain area, symbols washed out with water jet, air dried to create sculptural shapes and textured surface, 38 x 51 inches, edition of 10, published by the Brodsky Center at PAFA, Philadelphia.