* Biography: This is the most common term for a book about a real person's life. Biographies typically focus on the subject's life story in a chronological order, including their accomplishments, relationships, and challenges.
* Autobiography: If Helen wrote the book herself about her own life, it would be considered an autobiography.
* Memoir: Memoirs are more personal and subjective than biographies. They often focus on a specific period or theme in the author's life, and may include reflections on their experiences.
* Historical Fiction: If the book is a fictionalized account of Helen's life, using creative license to tell a story, it would be classified as historical fiction.
* Historical Nonfiction: This term is sometimes used for books that blend factual information with narrative techniques to make history more engaging. It would be appropriate if the book focuses on Helen's life in a historical context, but still aims to be accurate.
To determine the most accurate term, you would need to know more about the specific content and style of the book.