It’s the sort of book you just have to pick up. Having been a fan of David Macaulay’s books for a long time, I knew he’d get to the bottom of things. Sorry, If just begs for potty jokes.
In any case, this is a really interesting book. Macaulay explains, in forthright text, what goes into the toilet, what should NOT go into the toilet and what happens after the toilet is flushed. There is humor in the illustrations
and the text is simple but really explains how the whole water treatment system works. I only had a vague idea before reading this book and feel as though I learned something.