Book post is a term that refers to a package or parcel containing a book or a literary material that is sent through the post. However, there are a lot of ways to describe this kind of package besides the usual term. Some synonyms for book post include book package, book delivery, book courier, literary mail, book shipment, book parcel, literary package, book letter, literary post, and book courier service. All of these are excellent alternatives to describe the same type of postal service that delivers books and other printed materials. Use these synonyms to diversify your writing and make it more interesting.