What does it mean when an author is said to be anonymous?

When an author is described as anonymous, it means that their identity is not disclosed or is intentionally hidden, and they do not take credit for their work. This can occur for various reasons, such as the desire for privacy, the nature of the content, or to allow the work to stand on its own without the influence of the author's personal identity. Anonymous authorship is common in literary works, political pamphlets, and online content.