This chapter discusses different ways of representing learning interventions and designs. It identifies four main types of representations: verbal, textual, visual, and data-based. Examples of representations discussed include case studies, models, diagrams, and charts. Representations can have different formats, levels of granularity, and lenses. They can describe small activities or entire curriculums. Overall, the chapter analyzes different learning design representations and how they can be used to visualize and implement learning activities.