Interesting article, however I question how widespread this book actually is, and the bias of the author of the article. Has anyone here ever come across this

Interesting article, however I question how widespread this book actually is, and the bias of the author of the article. Has anyone here ever come across this book? Are there any teachers here? In all the years of my schooling, I never thought my teachers may have been influenced by such a book. Not many of my teachers were ever interested in talking about the social injustices or encouraging us to fight for any right, but quite the contrary actually. Once in a while I would come across an inspiring teacher who recognized the limitless potential of a young mind and attempt to pursue that ideal, but in the end, the overwhelming feel was always simply to spit out another well-rounded, good and contributing citizen of the society we live in. How dehumanizing is that?