Water has environmental, social and economic importance, which is why it should be handled wisely. The legislation regulating water management requires maps and displays of spatial phenomena, but both state and private institutions as well as the public have their needs too. In the same way the water bodies are inseparably linked with their surroundings and accompanying phenomena, also the maps showing these phenomena are closely linked and interdependent. In order to be able to cope with such a quantity of maps, their quality, interdependence, their data sources and area coverage, creating a system of thematic maps for water management is the most economical and rational decision to be made. In the first part of the thesis the phenomenon of water and water management is discussed. This is followed by the development of the concept of the system that defines reasons for introducing the system, its users, the principles and levels of the system, map design and a suggestion of technical implementation. In the second part of the thesis the concept is realized with a list of all the maps in the system and their properties. Assuming that some characteristics and parameters of the maps are the same, the editorial plan of the system of thematic maps is introduced. Special editorial plans are made for four maps with different scales and themes and complemented with the printed maps in appendix
