Venn diagrams are great to show overlapping features. In practice however, it can be hard to position text in the circular shapes. I often use an adjusted version of the Venn diagram, one based on boxes. Boxes are easier to draw, and especially, you can make the center box (the most important one) really large.
As you can see below, I did not rely on semi-transparent colors to create the overlap effect. Rather, I just drew the third box in, giving me complete flexibility to decide on colors. Again something that would be hard to do in a circle Venn diagram.

If you liked this post, why not subscribe to daily updates about presentation design via email? Just blog posts, no spam, or you can follow Jan on Twitter to never miss a thing.