The Centenary of the existence of the List of newly acquired books of the Public Library of Kragujevac is a motive for researches and the possibility to read attentively the historiography of the first Public Library in Serbia. This archivistic document of great value has compiled the rich history of acquisition and lodging of the library holdings of the most important cultural Institution in Kragujevac, through annotations of newly acquired publications, in the period from September the 12, 1901. to the end of 1950. Through the History of the public Library in Kragujevac, founded in 1866, it is possible to reconstruct the basis of the public librarianship in Serbia. The validity of registered books and records about transfers of librarians during half century, enables the documentary retrospective reading of reader's habits, library holdings and the integrity of the State into the very important segment of the cultural and social life, as the librarianship is in reality.