This document discusses learning design, which aims to make educational design practices more explicit. It proposes a new methodology called "learning design" to shift educational design from an implicit to an explicit and design-based practice. The author provides an overview of learning design research at the Open University, including the development of conceptual design views, a tool for visualizing designs called CompendiumLD, and an online social network called Cloudworks for sharing and discussing learning designs. The author argues that adopting a more principled design approach could help practitioners make more informed choices about designing learning interventions and integrating technology and pedagogy.