New York: W. H. Freeman, (2000). First edition - A collection of 21 essays written with a light touch, but based on serious science" - from "why we laugh, to why moths fly to the light, to how slinging drinks affects both memory and perception in a barmaid's brain .. . investigations from the very edges of science that . . explores how science adds to a re-examination of history with startling new theories about the Salem witches and a psychiatric profile of Joan of Arc." Illustrated with some small drawings. Bibliography. 271 pp.