students in senior years, PhD students, and junior research workers), international workshops, and the Kraków School of Theoretical Physics (for junior research workers from Poland and abroad). The Academic Library of the PAU and PAN The Academic Library of the PAU and the PAN has been in the structure of the PAU since 1 January 2000. Its origins go back to the 19th century and to the Kraków Learned Society. Until 1952 it functioned as the Library of the Academy of Arts and Sciences (since 1872) and of the Polish Academy of Arts and Sciences (since 1920), and starting from 1953 as an independent unit of the Polish Academy of Sciences. As a result of the agreement between the PAN and the PAU concluded on 20 October 1999, the Library became an institution managed by the PAU. The Library numbers ca. 660,000 volumes and inventory units, including nearly 144,250 volumes and inventory units of special collections, which comprise nearly 13,700 old prints, about 13,000 manuscripts and over 96,000 graphics and drawings. The Library exchanges publications with more than 1,000 institutions in 77 countries, publishes its "Annual" (of a volume of c.a. 50 publisher's sheets), prepares and successively issues catalogues of its collections, and is engaged in gathering and providing information, for instance on didactics in tertiary education institutions in Kraków. The Library has its own Council appointed (on a fifty-fifty basis) by the PAU and the PAN. The Archives of the Science of the PAN and PAU The activities of the PAU are closely connected with the Archives of the Science of the PAN and of the PAU. Besides the PAN's collection (starting from 1953) the Archives gather also files of the Kraków Learned Society and other Kraków societies, and, first of all, of the Academy of Arts and Sciences (since 1872) and the Polish Academy of Arts and Sciences (1920–1952 and from 1989). The collection contains also numerous legacies of many scholars, not only those who were the PAU members. As a consequence of the agreement between the PAN and the PAU, since 1 April 2002, the former Warsaw Branch of the Archives of the Polish Academy of Sciences has been functioning under the name of the Polish Academy of Arts and Sciences in Kraków. The Archives belong to the structure of the PAN Branch in Kraków but have their own Council appointed and financed by both the academies.