The older we get, the bigger type we need, and that won’t change for a while. As a result, large print rights can make you some money. Some kinds of books seem to do especially well with older readers—westerns and romances, for example. There is a Doubleday Large Print Book Club that will send members a book every month in large print, and again, if your book is selected for something like that, it means a little extra money in your pocket.