Expanding ODL sustainably means making practical choices about cost, technology, learner support and delivery, especially where digital access remains limited. COL’s new publication, Business Models for Open and Distance Learning, draws on research and field experience to help education leaders and policymakers develop ODL models that fit their context. Drawing on examples from open schooling, TVET, higher education and teacher education, the publication examines approaches ranging from print and contact-supported models to blended and online learning.