popular books by the book popularizers themselves

Top 100 Library Books, from OCLC, who should know. Sort of a surprising list, in some ways. Chicago Manual of Style appears twice for different editions. I’m not sure why Environmental Tobacco Smoke: Proceedings of the International Symposium At McGill University made the list. They seem to be all either politics, management or reference books, with a few curveballs [no Googdnight Moon? Only three kids books?]