HUMAN EVENTS ONLINE has compiled a list of the Ten Most Harmful Books of the 19th and 20th Centuries.
Though we won't disagree with some of their choices, I think the premise is stupid. Books can be dull. They can be wrong. They can be foolish. But harmful? Never.
Listen to John Milton tell us why in the Areopagitica:
Bad meats will scarce breed good nourishment in the healthiest concoction; but herein the difference is of bad books, that they to a discreet and judicious reader serve in many respects to discover, to confute, to forewarn, and to illustrate.