A "non-fiction book" is a type of literary work that presents factual information, real events, and actual experiences, as opposed to fictional stories. These books can cover a vast array of topics, including history, science, biography, self-help, politics, and more. Non-fiction books aim to educate, inform, or provide insight into the real world, offering accurate depictions of people, events, or phenomena. Through research and analysis, they often provide readers with a deeper understanding of various subjects, helping to broaden knowledge and perspectives. Non-fiction books are valuable resources for those seeking information, guidance, or a deeper comprehension of the world around them.