== Image:Venn diagram cmyk.svg == 

 I think that the first image on the page - Venn diagram cmyk.svg - could be misleading to someone who hasn't heard of a Venn diagram.  It makes it look like Venn diagrams are all about colour mixing.  Colour mixing is just an application of Venn diagrams.  The colours of a Venn diagram aren't usually so directly related to the meaning it is trying to get across.  Perhaps this can be corrected by better text but I would suggest choosing a better image.