Ellen Javernick is an American children's book author best known for her work "What If Everybody Did That?" which explores the concept of social responsibility through a series of actions and their potential consequences. Her books often carry educational and moral lessons, appealing to young readers and are used in schools to teach children about behavior and ethics. Javernick has a background in education, having been an elementary school teacher, which informs her writing and understanding of what resonates with children. Her stories are characterized by engaging narratives that encourage kids to think about their actions and the impact they have on others and their environment.