Regional geography of Slovenia is of fundamental national and state importance, as it is the only scientific discipline that thoroughly investigates Slovenia and its regional units as well as the connectedness of the geographical components of the landscape. The investigations and expertise of territorial characteristics are of high importance for any state, but particularly for a young states such as Slovenia, that still seeks its national identity, the scientific investigations regarding its territory, regional units and connectedness of the geographical components of landscape, are of extreme importance. Heterogenousity of Slovenian regions is one of the greatest wealthiness of our state. That is why the results of the Regional geography of Slovenia scientific programme are extremely important for many other scientific branches, such as geology, geodesy, biology, pedology, climatology, forestry, sociology, archaeology, history, regional planning, landscape architecture, environmental protection and tourismology as well. Geography, having a special knowledge about regions and their characteristics, may provide a scientific and technological essential know-how to many of the fields of interest of the sciences listed above. Regional geographical analysis and synthesis are also necessary for expert or political decisions, but above all for development decisions of planer or related institutions of Slovene ministries and the state as a whole. On the other hand is regional geography with landscape as its primary subject of research explicitly multidisciplinary oriented as it connects in an entirely new scientific synthesis result of special and other sciences. Regional geography accelerates preservation of diverse natural and cultural heritage of Slovene nation. Regional geographical research is also important for the education, as regional geography of Slovenia is an important subject in primary and secondary schools. It is also important for the common level of education of Slovene citizens, as they, with greater knowledge of regional geography, easier understand regional, political, economic, social, religious, cultural and other problems in Slovenia and the world. But not the least regional geography develops patriotism, pride and self-confidence of Slovene citizens by the fact that our country has on such small territory such richness of diverse landscapes.