See the image on its own

Something Spock might’ve knocked up in his first year at the Vulcan Science Academy.

That’s what I think when I look at this graphic. Now. Two years after myself and Laura Sullivan created it for my infographic book Information Is Beautiful (US | UK).

It’s been updated and regraphicked. I’ve folded in some new types of relationships from this awesome diagram from Franklin Veaux (via QuietRiotGirl).

(thanks to Elizabeth Dunn for sending!)

Sexperts! Let us know if we’ve missed anything.