Utterly compelling! Barbara Ann Kipfer has elevated the list to high art and bestselling pleasure. A foremost expert of classification, in , she does for life what her previous books do for happiness and wisdom—organize it in a way that is brilliantly conceived. The is practical, entertaining, eclectic, and impossible to put down. Beginning with Earth—Smog Alert States, Rain Forest Layers, Coal Sizes— and ending with General Knowledge and Philosophy (the 64 "chapters," Ludwig Wittgenstein's four-step Method of Overcoming Puzzlement), it is a 14-chapter taxonomy of the world as we know it: • The Seven Hills of Rome, the Seven Deadly Sins, the Seven Wonders of the Ancient World, the Seven Dwarfs—check. • The belt degrees of karate and judo, weight classes of professional and amateur boxing, flower names of the golf holes at Augusta—check. • The hierarchy of the FBI, publication order of Shakespeare's plays, cuts of beef, Freud's divisions of the human psyche, order of rank in world armies and navies, Jupiter's satellites, ships' bells, traditional and modern wine measures, blood-pressure levels, fastest animals—check. A completely indispensable reference—check.