The Race Car Brain With Bicycle Brakes

Gwen would like to know your suggestions for a book sat she might use to explain to her children, um, who have ah d, what a d is and how they should sort of feel about it. Um, that's great. Just describe to them the race car brain with the bicycle brakes. A great analogy. I mean, it really works well. And you see, includes the strength, you've got the sperrari engine, and it includes the problem, you'veGot bicycle braks.