This new ability has given way to a new business model – Print On Demand (or POD). POD is a method of printing and distributing books based on individual orders. So if any bookstore receives a request for your book, or decides that they want to stock your title, they can place an order with the supplier or publisher (such as Page Publishing).
The supplier then prints and ships only enough copies to fulfill the order. This method significantly reduces the cost of bulk printing and storing un-ordered copies of a book. The cost savings allow the author to offer their title at a reduced price and, as a result, sell more books. This drives sales exponentially as more people see your book and refer it to friends.