On August 22, 1972 the DDR issued this 50 (pf) stamp (Mi #1781) to commemorate the International Year of the Book. "Young Worker Reading", the image on the stamp, is by graphic artist and painter Jutta Damme (1929-2002). Damme taught at the Dresden Academy of Fine Arts.
From de.zxc.wiki, "In 1972 she was awarded the DDR Art Prize. In 1979 she was awarded the Bronze Patriotic Order of Merit in a collective."