The Bureau of Information and Propaganda of the Headquarters of Związek Walki Zbrojnej, later of Armia Krajowa (Polish: Biuro Informacji i Propagandy (Komendy Głównej Związku Walki Zbrojnej - Armii Krajowej) - in short: BIP), a conspiracy department created in spring 1940 during the German occupation of Poland, inside the Związek Walki Zbrojnej, then of the Supreme Command of Armia Krajowa (as 6th Department).
Initially, its commander was Major Tadeusz Kruk-Strzelecki, then Colonel Jan Rzepecki pseudonym "Wolski" or "Prezes". Until the end of 1940, his deputy was Hipolit Niepokólczycki, while since 1944 until January 1945, Captain Kazimierz Moczarski.
Tasks of BIP included informing of Polish community activities by the Polish Government in London, documenting activities of the German occupiers, psychological warfare against Nazi propaganda, consolidation of solidarity in the fight for independence of the Polish nation, collecting of information, reports and orders. BIP published underground newspapers, such as: Biuletyn Informacyjny (Information Bulletin), Wiadomości Polskie (Polish News) and Insurekcja (Insurrection); some of its departments carried secret trainings: Department A (film) in photoreport, direction, operation of megaphones.
Among others, cameramen and cutters Antoni Bohdziewicz, Wacław Kaźmierczak, Leonard Zawisławski, Seweryn Kruszyński, film/stage directors Jerzy Gabryelski, Jerzy Zarzycki pseudonym "Pik", Andrzej Ancuta, photographers Sylwester Braun and Joachim Joachimczyk, historian Aleksander Gieysztor, philologist professor Kazimierz Feliks Kumaniecki worked for BIP. Among others, Krystyna Wyczańska and Hanna Bińkowska were its liaisons officers.