Two things today. First, Amazon UK have 50% off both 59 Seconds and Quirkology! If you are interested in buying them, the links on the right will take you straight there.
Second, here are two nice illustrations about size perception. The first is probably the best perspective illusion I have seen….
and the second is a little video that I made yesterday, featuring a classic illusion first created by one of my heroes – Joseph Jastrow….
You can download a template to make your own version of the second illusion here.
Which is your favourite?