Emphasizing the importance of the development and maintenance of a system of signs to make the library patron aware that a reliable pattern of information exists within the library, this report includes a selection of statements excerpted from Sign Systems for Libraries, a collection of papers on visual guidance systems in various types of libraries edited by Dorothy Pollet and Peter C. Haskell (Bowker, 1979), and an outline, explanation, and list of recommendations for a proposed signage system for the Idaho State University Library. (FM)