The so-called " ghostwriting" can take various forms: books, articles, autobiographies, and even social media posts.
所谓的“代笔”可以采取各种形式：书籍、文章、自传，甚至社交媒体帖子。
英语百科
Form book
A form book is a tool used by attorneys to aid in the filing of pleadings, motions and other legal documents with a court or similar decision-making body. It is usually a binder containing loose-leaf pages, each of which has a form, or model, of a different kind of motion that the attorney might file with a court.