Ralf Koslowski, a German born in Dannenberg, after many leisure journeys to Southern Italy, decides 22 years ago to settle in Matera, fascinated by the peculiar energy coming from the Sassi. He works as carpenter and gardener, till the fatal date with the Matera tufa and the stone of Lecce, that he uses to extract very soft shapes, giving the sign of tradition and oneness to his works. Today Ralf is one of the most renowned craftsman-sculptor in the town.