Sarah Gonzalez

And the law that Alice told us about is pretty well documented.

But as far as we know, it doesn't have a name.

But here's how Alice explains it.

Uganda was struggling with domestic violence.

It was happening at alarming rates and people didn't seem to be reporting abuse.

Something needed to change.

Instead of putting up posters that said binge drinking is bad, researchers put up signs that essentially said, hey, actual statistics show that your classmates don't drink as much as you think they drink.

And that approach seemed to work.

And Alice was like, no, this approach only works if you are actually telling the truth.

So, for example, in remote parts of Zambia, healthcare workers often feel like no one cares what they're doing.

This curbs worker morale, makes it hard for them to show up and to do their best work.

And the whole book in general is just filled with like these kinds of visual jokes.

There's a chart on tooth fairy inflation.

There's like a whole love advice column from real economists.

It's truly, it's like colorful and bright, the book.

And really, it's just like a joy to read.

So go to planetmoneybook.com for info about the poster and about our book tour in 12 cities.

Because that's right, Planet Money is going on tour on a real book tour today.

I'm hosting one in L.A.

with co-host Nick Fountain.