• Present facts in a clear and attractive manner
• To visualize relations and matters which are not easily understood
• Present things effectively without having to use many words or figures
• To be able to visualize things that by nature are not visual
• Give an impression of thoroughness and show that we have a structured relationship to what we are working with
• Draw the audience's attention to what we consider is interesting and important
• Keep the audience alert during an oral or a lecture
• Be able to break up masses of grey copy in a report or a publication, thus making it more interesting
= Jan Gauguin in Designing diagrams =
