Peter Thomann (Berlin, 1940) studied with Otto Steinert at the Folkwangschule für Gestaltung in Essen, graduating as a photojournalist in 1965. After his graduation, he worked as a freelance photographer, traveling around the world. In 1968, he joined Stern as a staff photographer, where he stayed until his retirement in 2005.
He won several World Press Photo awards and his 1963 winning image 'Stute mit Fohlen' (mare and foal) is, according to the Guinness Book of Records, the most copied photograph in the world. Since 1998, the image is the offical logo of the Kentucky Horse Park in Lexington, Virgina, USA. With the prizemoney he received for this image, he financed a photographic trip to Morocco, which won him a second World Press Photo award in 1964.