These interesting and heavily illustrated 8-1/4 x 11-1/4 inches periodicals were published every two weeks by the Aufbau Verlag in Berlin. This magazine was the official voice of the Reichsbetriebsgemeinschaften, a subdivision of the Arbeitsfront in which German companies were organized. The magazine title Aufbau (building up) already tells about the content of these excellent periodicals: the reconstruction of Germany and the improve-ments since Adolf Hitler took over in 1933. This lot is a very interesting mix of issues from 1934 to 1939, all of them are in very good condition.