Land cover objects are reflected in a set of georeferential data and are constantly changing. These changes can be accurately examined by computer and interactive information systems. One of the main advantages of computer information systems is the fact that their maps can be constantly improved and updated.
The multimedia category is fairly self-explanatory in the sense that it contains all non-bibliographic resources that exist in the Land Library. This can vary from videos, maps, audio files, infographics and even website descriptions.