The new monograph Geography of Bulgaria is presented in two volumes: Volume 1, Physical Geography. Geoinformation Technologies, and Volume 2 "Economic and Social Geography. Regional Geography."* The total volume of the two volumes includes eighteen sections covering all contemporary dimensions of geographical knowledge. "Geography of Bulgaria" is a fundamental scientific work of national importance, which defines, argues, and defends the Bulgarian national space and identity, or as the founder of geographical science in Bulgaria, Acad. Anastas Ishirkov, calls it – "Bulgarian territory." In a certain sense, the monograph Geography of Bulgaria can also be viewed as an element of national security.