For example, say a bookstore purchases your $14.95 book at wholesale for $8.97/unit. After deducting the cost of author copies and shipping, the author has netted about $4.50/unit. If your book doesn’t sell, the bookseller has the option of returning them for credit, at the $8.97 rate. If this occurs, the author is out the $8.97 plus the printing and shipping costs.