A collection from the resources of the Cracow University of Technology Library, a valuable source of knowledge about the historical and cultural heritage of Polish society in the late nineteenth and first half of the twentieth century. It includes a rich collection of books, mainly textbooks in technical fields, whose authors are the lecturers of the Lviv University of Technology, literature, Polish and foreign fine literature, travel guides, works on the history of Poland and the world and the history of art. The collection consists of publications issued before 1945 in Lviv and concerning Lviv.