Various materials published in professional journals show us a picture of the professional life of a given group. Therefore, an attempt was made to reconstruct the image of ibrarianship in Czechoslovakia in 1945-1955 on the basis of the content published in two major periodicals: „Knihovna” and „Lidová Knihovna”. During this period, the functions of libraries and librarian were redefined. Convincing decision-makers about the role of books in building the socialist system resulted in attempts to involve librarians in propaganda activities.