A highly readable, obviously relevant, critical examination of the deleterious effects Facebook has had on our lives, social structures, polis, and culture. This is a scholarly book (which is a good thing), so, Vaidhyanathan draws connection to Neil Postman's work as well as other media and communication scholars. But as scholarly and informed as the book is, Vaidhyanathan does not mince words when exposing the Facebook effects. He also broadens the discussion under Postman's technopoly framework where social issues are depoliticized and treated as technical issues. Alas, there is no salvation by algorithm (which we should know by now since there is already substantial literature on this). So, yes, this is a pretty pessimistic account Facebook cannot be "reformed" and its founder still gets it wrong. In the end, Vaidhyanathan offers a few prescriptions that might have a better chance of happening outside the US, considering our current political climate, in part generated and amplified by Facebook.
With this book and others (I'm thinking Weapons of Math Destruction: How Big Data Increases Inequality and Threatens Democracy by Cathy O'Neil or Twitter and Tear Gas: The Power and Fragility of Networked Protest by Zeynep Tufekci), we are definitely leaving the era of utopian pronouncements on information wanting to be free and disruptive innovation and entering a bleaker (but more realistic) era of social media scholarship.
Highly recommended.