Christopher Wylie, The man behind the core working team of Cambridge Analytica, later turned out as a whistleblower and spoke about the private psychological research with the personal data from millions of Facebook users. Wylie began to notice things deep after CA's influence on Brexit and began to talk to his associates. That leads to this book later on.
Read about greatest technological, social and political plot to break America and Democracy on the whole. Brexit and US Elections are just a beginning. Data is being controlled, commodified and used as a powerful weapon by the monopolies and the governments to preserve and continue its run.