Susan Beth Pfeffer is an American author known for her young adult novels, particularly in the science fiction and dystopian genres. She gained widespread recognition for her book series, including the popular Last Survivors series, which explores themes of survival and environmental disaster. Pfeffer's writing often focuses on the impact of catastrophic events on individuals and families. Her works have been praised for their engaging storytelling and relatable characters, making her a significant figure in contemporary young adult literature.