In the second half of the 18th century and the beginning of the 19th century Croatian Latinists, under the impact of the Enlightenment and reformation of public administration, are writing the works which they name „statistics“ and in which they analyze historical and current status of chosen countries. This thesis has analyzed four littterary works written by the two authors who write during that time: Adam Adalbert Barić and Miho Horvat, to show a model by which „statistics“ are written, the data about Croatian lands, and the significance of the „statistics“ as a historical source. Firstly, there are informations about historical context in which the analyzed authors write their works, then basic informations about the authors and their works, followed by the analysis of structure and content in purpose of perceiving differences and similarities between works and in purpose of showing a general structure model of the genre. Subsequently, the thesis shows examples of data about Croatian lands which are presented in the „statistics“ written by Miho Horvat, because Horvat's „statistics“ have not been analyzed before, and in purpose of analyzing „statistic“ as a historical source. Finally, the thesis made a conslusion about the role of „statistics“ as historical sources.