public ActionResult EditPublisher(Publisher publisher)
        {
            if (ModelState.IsValid)
            {
                string submit = Request.Form["submit"];

                if (submit == "Edit")
                {
                    publisherManager.EditPublisher(publisher);
                    return(RedirectToAction("AddBook", "Book", null));
                }
                else
                {
                    return(View(publisher));
                }
            }
            else
            {
                return(View(publisher));
            }
        }