 Polish literature faced a similar fate in territories annexed by Germany , where the sale of Polish books was forbidden . The public destruction of Polish books was not limited to those seized from libraries , but also included those books that were confiscated from private homes . The last Polish book titles not already proscribed were withdrawn in 1943 ; even Polish prayer books were confiscated . Soon after the occupation began , most libraries were closed ; in Kraków , about 80 % of the libraries were closed immediately , while the remainder saw their collections decimated by censors . The occupying powers destroyed Polish book collections , including the Sejm and Senate Library , the Przedziecki Estate Library , the Zamoyski Estate Library , the Central Military Library , and the Rapperswil Collection . In 1941 , the last remaining Polish public library in the German @-@ occupied territories was closed in Warsaw . During the war , Warsaw libraries lost about a million volumes , or 30 % of their collections . More than 80 % of these losses were the direct result of purges rather than wartime conflict . Overall , it is estimated that about 10 million volumes from state @-@ owned libraries and institutions perished during the war . 
 Polish literature faced a similar fate in territories annexed by Germany , where the sale of Polish books was forbidden . The public destruction of Polish books was not limited to those seized from libraries , but also included those books <a href='null_relcl' title='1'><mark>that</mark></a><a href='uninflect' title='2'><mark>were</mark></a> confiscated from private homes . The last Polish book titles not already proscribed <a href='uninflect' title='3'><mark>were</mark></a> withdrawn in 1943 ; even Polish prayer books <a href='uninflect' title='4'><mark>were</mark></a> confiscated . Soon after the occupation began , most libraries <a href='uninflect' title='5'><mark>were</mark></a> closed ; in Kraków , about 80 % of the libraries <a href='uninflect' title='6'><mark>were</mark></a> closed immediately , while the remainder saw their collections decimated by censors . The occupying powers destroyed Polish book collections , including the Sejm and Senate Library , the Przedziecki Estate Library , the Zamoyski Estate Library , the Central Military Library , and the Rapperswil Collection . In 1941 , the last remaining Polish public library in the German @-@ occupied territories was closed in Warsaw . During the war , Warsaw libraries lost about a million volumes , or 30 % of their collections . More than 80 % of these losses <a href='uninflect' title='7'><mark>were</mark></a> the direct result of purges rather than wartime conflict . Overall , it is estimated that about 10 million volumes from state @-@ owned libraries and institutions perished during the war . 
Polish literature faced a similar fate in territories annexed by Germany , where the sale of Polish books was forbidden . The public destruction of Polish books was not limited to those seized from libraries , but also included those books was confiscated from private homes . da last Polish book titles not already proscribed was withdrawn in 1943 ; even Polish prayer books was confiscated . Soon after the occupation began , most libraries was closed ; in Kraków , about 80 % of the libraries was closed immediately , while the remainder saw their collections decimated by censors . The occupying powers destroyed Polish book collections , including the Sejm and Senate Library , the Przedziecki Estate Library , tdaZamoyski Estate Library , thdaentral Military Library , and thedapperswil Collection . In 1941 , the dat remaining Polish public library in the German @-@ occupied territories was closed in Warsaw . During the wda, Warsaw libraries lost about a million volumes , or 30 % of their collections . More den 80 % of these losses was the direct result of purges rather tdenwartime conflict . Overall , it is estimated that about 10 million volumes from state @-@ owned libraries and institutions perished during the war .