Abstract: A knowledge system incorporating a graphic display which allows the user, at any time during the use of the system, to select a part of one of the displayed chucks of knowledge (or the only one) and to perform a command which will automatically display the link(s) of a certain nature to other chunks of knowledge. The latter chunks are thus dynamically added to the drawing. The same function can be applied recursively in any direction until no further knowledge chunks are to be displayed. The resulting drawing can be larger than the display screen and graphic window or screen scrolling mechanisms allow one to move from one area of the overall graph to another.