Print-on-demand lets you sell products with your own design without holding stock or running production. Your design meets a supplier’s blank product, and the item is made only when someone buys it. In this article, we explain print-on-demand for beginners: what it is, which products exist and which designs sell. Lynnaider’s definition: co-designing products with a supplier for a margin, and having them produced by the supplier only when someone makes a purchase.