Complicated Stuff in Simple Words
by Randall Munroe
In Thing Explainer: Complicated Stuff in Simple Words, things are explained in the style of Up Goer Five, using only drawings and a vocabulary of the 1,000 (or "ten hundred") most common words. Explore computer buildings (datacenters), the flat rocks we live on (tectonic plates), the things you use to steer a plane (airliner cockpit controls), and ...
A great book by Randall Munroe (creator of xkcd, a very science-oriented webcomic.) In this book, he explains very complicated concepts, all the way from climate change to physical systems to submarines while only using the 1,000 most common words in the English language. He called the Saturn Five rocket “Up Goer Five.” You can’t define a rocket as a spaceship or a rocket. It’s self-referential. He says “up goer.” It’s this thing that goes up. Kids get it right away. – source