Presented you today the Statistical card of the history of the Poznan City is an especial elaboration within the editorial achievements of the Statistical Office in Poznań. First time a trial to relate of the history of city using the figures was undertaken. The publication consists of two parts. First of them – divided into several periods – presents The Poznań City in the statistics. The second part describes development of statistical thought, creation and transformation of statistical institutions as well as activity of persons creating fundaments and picture of the statistics in Poznań. An inspiration and simultaneously invaluable source of information for this publication were the Statistical Yearbooks of the Capital City Poznan, prepared and published in inter-war years. Their reading enabled a travel in time and simultaneously gave a sense of continuity of work of the public statistics services.