 There were over 1 @,@ 000 underground newspapers ; among the most important were the Biuletyn Informacyjny of Armia Krajowa and Rzeczpospolita of the Government Delegation for Poland . In addition to publication of news ( from intercepted Western radio transmissions ) , there were hundreds of underground publications dedicated to politics , economics , education , and literature ( for example , Sztuka i Naród ) . The highest recorded publication volume was an issue of Biuletyn Informacyjny printed in 43 @,@ 000 copies ; average volume of larger publication was 1 @,@ 000 – 5 @,@ 000 copies . The Polish underground also published booklets and leaflets from imaginary anti @-@ Nazi German organizations aimed at spreading disinformation and lowering morale among the Germans . Books were also sometimes printed . Other items were also printed , such as patriotic posters or fake German administration posters , ordering the Germans to evacuate Poland or telling Poles to register household cats . 
