Ever wonder what draws someone to the field, say, of cytogenetics, the study of chromosomes? Or spectroscopy, the study of radiant energy emitted or absorbed by a burning chemical? In Sensational Scientists: The Journeys and Discoveries of 24 Men and Women of Science (Raincoast, $24.95) Barry Shell profiles the mature scientist and his or her life as a youngster, defines the science, and provides career advice for each field as well guidelines for hands-on activities and experiments.1-55192-727-6