A good overview of the dangers of monopolies and monopsonies. While the main idea was to look at the harms of concentration of capital and of corporate market power, by identifying chokepoints and middle men as major problems, the book was able to look at broader and more complex ways that power can be exercised and used to control the choices we have. In some cases even with a relatively small share of the market (especially in the case of buyers).

The book had many concrete and reasonable policy proposals, though there were some that seemed not fully-formed or lacking. However, the authors recognized the limitations of a one size fits all solution and explicitly encouraged people to critique, engage, and adapt their ideas to different market conditions.