Mary Elting Folsom was an American author known for her contributions to children's literature, particularly in the realm of educational and informative books. Her notable work, "Trains at Work," reflects her ability to engage young readers with fascinating insights into the world of trains and their operations. Folsom's writing is characterized by a clear, accessible style that makes complex subjects understandable and enjoyable for children. Folsom's literary significance lies in her dedication to fostering a love of learning through storytelling. By focusing on topics that capture the imagination of young readers, she played a role in shaping early educational literature. Her works often blend factual information with engaging narratives, making them valuable resources for both entertainment and education. Through her writing, Folsom contributed to the development of children's literature that emphasizes exploration and curiosity about the world around them.