© Stamp Design Royal Mail Group Ltd 2016
Christmas stamps 2016
More from Chalkdust
Things to make
Platonic shapes from tube maps, flexagons, and more mathematical craftWhat’s hot and what’s not
Optimal Pac-Man
Ghostbusting with graph theoryReinventing 2D
What a difference a matrix makesYour social networks
How similar are you to your friends?Art meets maths