Allen Jones and Sae Ra Germaine write: “Interlibrary lending and document delivery have never been neutral technical layers. They are shaped—sometimes constrained—by the platforms libraries choose to implement. Over the last 25 years, two broad models have emerged: centralized networks and regional or distributed networks. Against this backdrop, the National Library of Australia explored a third path: a national network of networks, which includes libraries of all types—academic, public, special, and corporate.”