Rosie Revere, Engineer tells the story of a shy girl who loves to invent gizmos and gadgets from found objects, but hides her creations after being laughed at by a relative. Her great-great-aunt Rose (inspired by Rosie the Riveter) visits and shares her own unfulfilled dream of flying, inspiring Rosie to build a contraption to make it happen. When the invention seems to fail, Aunt Rose teaches Rosie that the only true failure is giving up, and that a 'first flop' is a step toward success. The book celebrates perseverance, creativity, and the importance of learning from mistakes.