The overhead projector

Careless handling of the overhead projector drains the communications value of presentations. The four most serious problems are: the keystone image; cluttered visuals; speaker blocking the image; and careless handling of the projectuals. These problems are discussed and simple solutions are offered in each case. Use of this projector in major United States industries has been researched by the author to establish that it has become a major device in oral communications. He encourages manufacturers of overhead hardware and software to give more attention to this aspect of their product. Also included are innovations and ideas that may significantly expand and professionalize use of this audio-visual device.