This pamphlet identifies the components of the overhead projector and suggests ways it can be used in presenting instruction. Advantages and disadvantages of the overhead are listed, and instructions are provided for setting up, positioning, and focusing the equipment. Information is also given on how to use opaque materials and overlays, how to achieve simple animation and silhouettes, and how to produce transparencies. Instructions for the use of dry transfer lettering and coloring are also provided. (MER)