The document discusses the American Chemical Society's transition to print on demand for journal articles. It provides three key points: 1) Print on demand offers economic and environmental benefits over traditional printing by reducing costs through eliminating excess printing and storage of spare copies, and using fewer natural resources. 2) There are different models of print on demand, including subscription fulfillment where customers are unaware of the change, and producing replacement or backorder copies on an as-needed basis. 3) The transition involved testing the process from data transfer to printing to invoicing, moving subscription fulfillment titles to print on demand, and starting an online customer ordering system, which resulted in fewer replacement copies needed and a more efficient delivery