Jane Yolen, a prolific and award-winning author of children’s and young adult literature, has died at the age of 87. She was best known for her 1988 novel, *The Devil’s Arithmetic*, which vividly portrays the Holocaust through a time-travel narrative and has become a widely-read and studied classic. Throughout her career, Yolen authored approximately 450 books, beginning with her first publication at age 22. Her extensive body of work spans various genres, including fantasy, science fiction, and folklore. Yolen’s writing frequently explored themes of social justice and historical understanding. Her family announced her passing, noting her significant contribution to children’s literature. *The Devil’s Arithmetic* has been particularly impactful in educating young readers about the horrors of the Holocaust.