That is a good list ...
http://sydneyline.com/Intercollegiate%20Review%20selection.htm
... and grat capsule reviews ... John Maynard Keynes, The General Theory of Employment, Interest and Money (1936)
This book did for Big Government what Rachel Carson's Silent Spring did for the tse-tse fly. ...
I like titling it "The Worst Books" rather than 'the most dangerous', since there are some here who seem to be reacting as if calling ideas 'dangerous' is a form of anti-intellectualism.
On the contrary. If you value ideas, you must value judging between the *good* and *true* ideas and the *wrong* and *false* ideas.
It's okay to give a book a review that says "phew, what a stinker!" even if it 150 years after the fact.
Okay ... so where is the list of 100 *BEST* books of the 20th century?
100 BEST Books of the 20th Century
Just for curiosity's sake:
http://www.google.com/search?client=safari&rls=en&q=100+best+books+of+the+20th+Century&ie=UTF-8&oe=UTF-8