In 1936, Theodor Marcus founded the Academia Verlag after he was denaturalized and fled to Czechoslovakia where he had obtained a work permit in advance. Until 1940 he was the manager of the Academia Verlag in Prague, although he resigned his publishing activities on March 15, 1939.
Before he fled to Czechoslovakia he was the co-partner of the publishing house M. & H. Marcus beginning in 1922. Starting in 1934, he suffered from backlashes; he tried to transfer the publishing house to Switzerland, but the attempt failed.
- Fischer, Ernst: Verleger, Buchhändler und Antiquare aus Deutschland und Oesterreich in der Emigration nach 1933: ein biographisches Handbuch / von Ernst Fischer. - Stuttgart : Verband Deutscher Antiquare, 2011
- Cohn, Willi (2007): Kein Recht, nirgends. Tagebuch vom Untergang des Breslauer Judentums 1933-1941: Digital version on Google Books