A navigation device (1) including an input device for inputting operator commands and/or location data, particularly starting points and/or destinations, a road network database, a route calculating unit for calculating a planned route with consideration of the location data and the road network database, wherein the route leads from the starting point to the destination, a signal receiving unit for receiving position signals, particularly GPS-signals, a position determining unit that determines the current position based on the position signals, and at least one optical display device, has an editable image database, in which image data files (7) provided for being displayed on the display device can be managed in a user-defined fashion and method of operation.