For most of us under 30, the idea that giving things away online is a good way to make money is pretty much undisputed. We just aren’t always sure why, and Anderson does a great job of explaining.

There are also some good sociological and psychological insights into humanity in general and generational differences since the Industrial Revolution. Even if you aren’t interested in business, this will give you plenty to think about: your own shopping and browsing habits, and how you might make a better living by giving your work away.