Most self-publishing authors use a print-on-demand printer, which means your book is only printed if it is sold. Print-on-demand books are usually available for distribution through Ingram Content Group, which makes your book available to online retailers, who usually sell single copies directly to the consumer, and to bookstores, which may either special-order for a customer or choose to stock the book. When someone orders a book through an online retailer, or when a bookstore orders a book for a customer or to stock, the book is printed and shipped. If you are interested in knowing more, you can refer to our comprehensive guide on book distribution. Good to know: Your print-on-demand book will be available for sale on all major distributors and online stores, including Amazon, Barnes & Noble, Walmart, and Apple Books.