"What makes a quark? How many quarks make a proton? How many protons make an oxygen atom? How many oxygen atoms make a carbon dioxide molecule? How many carbon atoms make you? In this accessible little book, packed with helpful diagrams and interesting information, science writer Matt Tweed takes us on a whirlwind tour into the tiny realms, the stuff we are all made of, the building blocks of the material world, the elements of chemisty."