Discussion about the periodic press in Library Science as a means of identifying its circulation as a field of knowledge, and the origin of magazines and the reason for their circulation is analyzed. Publications released before the 1970s are prioritized, such as: the ‘Boletim Informativo da Federação Brasileira de Associação de Bibliotecários', the ‘Boletim Informativo do Instituto Brasileiro de Bibliografia e Documentação' and the ‘Instituto Brasileiro de Bibliografia e Documentação': Assorted News.
Library Science; periodical press; history of library science, Brazil; periodic press