Harry Potter is a kind of 用book 还是books?

Harry Potter is a kind of 用book 还是books? Harry potter is one of ____(child)favourite books 英语翻译Harry Potter is a set of popular books created by J.K.Ro The arrival of a new Harry Potter book is a worldwide event! Harry Potter is so interesting a book that lots of teenagers How do you like the book Harry Potter?Harry Potter is a worl 《Harry Potter》is a very interesting book.哪儿错了? what kind of the movie Harry Potter? The name___ the book is Harry Potter. i have a book call harry potter 和any kind of books还是any kind of book? 英语翻译J.K.Rowling is the writer of the Harry Potter books.She