Symmetry : why your left is like your right (and why it's different)

Fractals : why mountains look like molehills

Spirals : the math in snails and sunflowers

Flow & chaos : finding the hidden order

Waves & dunes : how to make a chemical clock

Bubbles & foam: why bees know best and why froth inspires architects

Arrays & tilings : why crystals aren't five-sided and how to make impossible ones that are

Cracks : how things fall apart and how a giant made his staircase

Spots & stripes : how the zebra paints its coat.