Book ghostwriting is a service where a professional writer creates a book on behalf of another person, often without public acknowledgment. The author provides ideas, themes, and personal experiences, while the ghostwriter crafts the narrative, ensuring the final product reflects the author's voice and vision. This process is common among busy professionals, celebrities, or anyone who wants to publish a book but lacks the time or writing skills. Ghostwriters can help transform concepts into a polished manuscript, making it easier for individuals to share their stories or expertise with a wider audience.