A book writer, also known as an author, is a person who creates written works, typically in the form of books. They may write fiction, non-fiction, poetry, or other genres, and their work can be published in print or digital formats. Book writers often conduct research, develop characters, and craft plots to engage readers. Many book writers work independently, while others may collaborate with publishers or literary agents. Successful authors often have a unique voice and style, which helps them connect with their audience. Notable book writers include J.K. Rowling, Mark Twain, and Jane Austen, each contributing significantly to literature.