If you haven't read it already, I highly recommend "The Age of Surveillance Capitalism" by Shoshana Zuboff. It's not exactly a 'how to' manual for privacy, but

If you haven't read it already, I highly recommend "The Age of Surveillance Capitalism" by Shoshana Zuboff. It's not exactly a 'how to' manual for privacy, but it is helpful for understanding the scale of the problem.