25. The apparatus of claim 21, further including a graphics library modification module for modifying the contents of the graphics library in response to user input.
25. The apparatus of claim 21, further including a graphics library modification module for modifying the contents of the graphics library in response to user input. 26. The apparatus of claim 25, wherein the graphics library modification module contains a graphics addition submodule for adding to the graphics library a graphic image having one or more concepts associated with it, in response to user input.