Have you ever thought about the fact that before the fridge you'd have had maggots in your margarine? Ever thought about what you might use to wipe your bum before loo roll was a thing? And what about what everybody did before computers?! In this third hilarious book from Adam Kay and Henry Paker you'll learn about all of these and more. Full of funny findings and disgusting discoveries, you'll uncover important inventions that changed the world and saved lives like electricity and the internet, and captivating creations that absolutely did not (but are still a lot of fun) like smell o vision and trampolines. An A to Kay to Z of the best, grosest and frankly most ridiculous inventions in the world.