Barbara McClintock won the Nobel Prize nearly 30 years after she discovered and described "jumping genes", or transposons. Manipulation of these highly mobile portions of the genetic code has advanced medical research by leaps and bounds. However, as with many great discoveries, it wasn't understood or appreciated at the time. The subtitle, "alone in her field", is a nod to her style of working completely alone and her choice of subject for her genetic research-she painstakingly hand-pollinated corn plants. This book details Barbara McClintock's unconventional childhood and her growth into a premier scientist, despite the obstacles she often faced because of her gender. It conveys her brilliance without losing her warmth and personality. The difficult scientific concepts (so difficult her contemporaries didn't understand them!) are clearly explained. Soft pencil sketches enliven the pages. A short list of recommended reading is included, as is a brief glossary.