Nonfiction Literature refers to a genre of books that present facts and real events rather than made-up stories. It encompasses a wide range of sub-genres such as historical fiction books that are based on historical realities, memoirs that are personal accounts or biographies written from personal knowledge or special sources, and non-fiction books for young adults that are specifically designed to cater to the interests and comprehension levels of teenagers. This category also includes all other forms of non-fiction books that aim to provide factual information to the reader.