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The Flight Inventor鈥檚 Workshop from the Boston Museum of Science is not merely a book but a kit-plus-handbook that allows armchair aviators to build six experimental flying toys (three kites, two gliders and a parachute). Not only does it provide aerodynamic rigour for children who鈥檝e so far only made handkerchief parachutes for their Barbies, but Belinda Recio鈥檚 handbook cleverly stresses the importance of inventive thinking-and how to go about using it-as you develop your versions of the aircraft. Published by Running Press, Boston, $18.95, ISBN 0762403462.