The Book of Phobias and Manias: A History of Obsession

Edgar Award winner Summerscale (The Haunting of Alma Fielding) examines the fear of the number 13, the 17th-century Dutch tulip frenzy, and 97 other irrational turns of mind in this fascinating compendium. Acarophobic delusions, caused by the “extreme fear of tiny insects,” can be transmitted from person to person and once caused Salvador Dalí to take a razor blade to his back to kill a flea that turned out to be a pimple. Triskaidekaphobia, or fear of the number 13, may have its roots in the story of the Norse trickster god, Loki, who “cursed the earth with darkness” when he crashed a dinner party for 12 other gods at Valhalla and became the 13th at the table. Summerscale also makes the intriguing point that manias and phobias may actually preserve sanity by “crystallising our frights and fancies, and allowing us to proceed as if everything else makes sense,” and links obsessions to historical and cultural developments, noting, for example, that arithmomania, or “a pathological desire to count,” was first identified in the late 19th century and may be the product “of our era’s reverence for mechanical processes.” Exquisitely detailed and consistently insightful, this is an entertaining guide to humanity’s compulsions. (Sept.)