Out of It is a thoroughly addictive examination of intoxicants, from the everyday substances of alcohol, caffeine, and tobacco to the illicit realm of opiates, amphetamines, and hallucinogens. More than a mere (if heady) catalog of intoxicants, however, Stuart Walton’s book is a smart, wry look at why intoxication has always been a part of the human experience—from our earliest Stone Age rituals to the practices of the ancient Greeks and Romans, right on up through the Victorian era and ending with a flourish in modern times—and more significantly, why the use of intoxicants is, and will continue to be, an essential part of being human.