Hear hear! And I'm glad to see Croly's The Promise of American Life on the list. A truly awful book -- and the very favorite of Harvard's Samuel Beer (who wrote "To Make a Nation.") For those who don't know, Croly penned the phrase "New Nationalism" and founded The New Republic.
If Croly's book is there, so, too, should be Charles Beard's Economic Interpretation of the Constitution of the United States, which was more influential than Croly's The Promise, and just as pernicious. Not a lot of good political science out of the Progressive Era. For an antidote, read Taft's Popular Government (amazon.com link)
Chairman's Mao's Little Red Book, did not make the cut???
I thought that was a great book. Communist, sure, but a great book.
I would add L. Ron Hubbard's "Dianetics" (Scientology Bible) and R.A. Salvatore's "Star Wars: Vector Prime" (How DARE he kill off Chewbacca).