Henry George: Progress and Poverty.

Explains how taxing land instead of labour is the path to a far better world. Versus now where progress means higher land prices which means poverty for those excluded from land.

Once nearly got to be mayor of New York. Sold 6 million copies (at the time only the bible outsold it).

https://www.aier.org/article/amazing-influence-henry-george-...

As recommended by Albert Einstein and many others.