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THE TERM operational research was coined, it is said, in 1937. From 1957 it became familiar to British librarians in the planning stages of the National Lending Library, Boston Spa. About ten years ago the work of Graham Mackenzie's Lancaster University research group became widely known. Yet, unlike costing or “O and M”, operational research has not become part of the do‐it‐yourself kit of the young administrator in Britain.