Holography: Potential As projected holography becomes a more cost effective imaging technique, its value as a simulation technique will be exploited throughout the whole spectrum of resource interpretation, assessment, evaluation, design, and planning activities. Holography will become an invaluable teaching tool, enhancing the graphic access to (and as a consequence, the understanding of) a visually powerful knowledge base. The enhanced efficiency of holography as a medium for the compaction of knowledge will facilitate the assembly of vast libraries of computerized holographic images. It has been estimated that by the year 2000, the technology will have developed to the extent that "the entire contents of 26 miles of bookshelves can be holographed and stored in eight file cabinets" (Cetron and O'Toole, 1982). Projected Holography