Chapter 5 summarizes some of the book's themes.

This Guidelines article by Erik is an even shorter high-level take.

Erik Olin Wright, a sociologist and former member of the 'non-bullshit Marxists' (which included analytical philosophers GA Cohen and Jon Elster and economist John Roemer amongst others), has a good book Envisioning Real Utopias (full book on his webpage here) that I think would be a profitable read for those interested in utopias work.

For those interested in the topic, political scientist Lee Drutman’s new book “Breaking the Two-Party Doom Loop: The Case for Multiparty Democracy in America” may serve as a good contemporary, but less quantitative, introduction.