This document discusses the structure and components of open distance learning (ODL) course materials. It begins by explaining how ODL materials differ from traditional textbooks in being specially designed for distance learning students. The objectives are then stated as differentiating between textbooks and ODL materials, and listing devices included in ODL materials. The main body explains that ODL materials contain a wide range of embedded learning devices, less text than traditional materials, space for learner answers, and a generous layout. Examples of ODL course structures and units are also provided.