In the 1970s and 1980s, the books published by Giedroyc, as well as the archival issues of Kultura, were a treasury of texts for independent, opposition publishers in Poland. The so-called “underground” publishing houses (“second circuit” of publications ‑ the “first circuit” are official publishing houses, approved by censorship) illegally published texts that were unavailable in Poland due to censorship. The phenomenon of underground publishing existed in many countries of the Soviet bloc (e.g. samizdat in the USSR), but it was in Poland that it reached its greatest proportions. A large part of the books of the second circuit are reprints of the publications of the Literary Institute. Bestsellers in this market have become, among others: books by Witold Gombrowicz, Stanisław Barańczak, Gustaw Herling-Grudziński, Czesław Miłosz, Leszek Kołakowski, Stanisław Swianiewicz, Paweł Zaremba, Marek Hłasko, Stefan Kisielewski, George Orwell, Melchior Wańkowicz ‑ and many, many others… We present here the covers of some “underground” reprints of IL books.