The World Bank, a specialized agency of the United Nations, is devoted to promoting the economic development of its member nations. Its photo library, with a collection of nearly 25,000 black-and-white photographs and color slides, serves as a resource center for various activities of the Bank and other organizations. Intended as a background document for decision-making, this report analyzes classification and organization schemes which could be used in this special type of library. A proposed classification, indexing, and retrieval system is presented, with attention given to captioning and computer and micrographic applications. A scheme for storage, filing, organization, and circulation of slides is also outlined. Appendixes include a proposed time frame for the project, a subject heading code, and a list of readings for professional growth. (Author/SL)