Kass Morgan is an American author best known for her young adult science fiction series "The 100," which explores themes of survival, society, and human relationships in a post-apocalyptic world. The first book in the series was published in 2013, and it has since been adapted into a successful television series. Morgan’s work often combines elements of adventure, romance, and moral dilemmas, making her stories appealing to a wide range of readers. In addition to "The 100" series, she has written other novels and continues to be an influential voice in the YA genre. If you have specific questions about her works or career, feel free to ask!