Gr 7 Up-A solid collective biography that introduces five American inventors. The somewhat eclectic group includes Temple Grandin, who used her own experiences with autism and her sensitivity to touch to create machines to treat livestock more humanely. Readers meet Madam C. J. Walker, the African-American cosmetics magnate who made and sold her own products in the late 19th and early 20th centuries; Rose O'Neill, the inventor of the Kewpie doll; and Grace Hopper, who developed early computer languages such as COBOL. Currie closes with a chapter on Margaret Knight, the child laborer whose experiences in factories led to her own idea about manufacturing square-bottomed paper bags, among other innovations. The focus is definitely on the women's work as the book does not offer much information on their personal lives. Black-and-white photos round out the text. A good source for unique biography subjects.-Carol Fazioli, formerly at The Brearley School, New York City Copyright 2001 Cahners Business Information.