The New York Times Everyday Reader's Dictionary of Misunderstood, Misused, Mispronounced Words.

Words we "know" until someone asks us what they mean. Words we understand when we read them, but not when we hear them. Words we recognize when we hear them, but not when we meet them in print. Words we can read, but are unsure about using in conversation. Words we can pronounce but cannot spell (or vice versa)