Thomas Sowell on the choice of college for your individual child is just naturally worth considering for a ping. IMHO.
1. The very name of the book has a double meaning that gives a clue as to the book's true purpose. This would be OK if the book openly stated its intent, but it does not. There is an element of deviousness here.
2. The book has a focus on liberal arts, so it will inform you about the political attitude of the history professors at a college. But many students are going to be majoring in the sciences, engineering, etc. where the political attitudes of their professors will be largely invisible and irrelevant.