From the No. 1 bestselling author of What If? – the man who created xkcd and explained the laws of science with cartoons – comes a series of brilliantly simple diagrams (‘blueprints’ if you want to be complicated about it) that show how important things work: from the nuclear bomb to the biro. It’s good to know what the parts of a thing are called, but it’s much more interesting to know what they do. Richard Feynman once said that if you can’t explain something to a first-year student, you don’t really get it. In Thing Explainer, Randall Munroe takes a quantum leap past this: he explains things using only drawings and a vocabulary of just our 1,000 (or the ten hundred) most common words. Many of the things we use every day – like our food-heating radio boxes (‘microwaves’), our very tall roads (‘bridges’), and our computer rooms (‘datacentres’) – are strange to us. So are the other worlds around our sun (the solar system), the big flat rocks we live