Description: The Delphi method is a process used to arrive at a group opinion or decision by surveying a panel of experts. The method was developed in the 1950’s and 1960’s by the RAND Corporation and since then has been used in many fields, including library and information science. During a Delphi study, selected experts respond to several rounds of questionnaires, and the responses are aggregated and shared with the group after each round. A Delphi study relies on the idea that collective group responses are superior to individual responses. Purposes: Originally the Delphi method was created as a systematic, interactive forecasting method relying on a panel of experts. Since then, Delphi studies have been used for many purposes: creating policy, establishing guidelines, and identifying trends.