The World Association for Public Opinion Research (WAPOR) was founded in 1947 with the objective of providing a worldwide meeting ground for those working in survey research, with particular emphasis on uniting those working in academic settings with those doing similar work in the private sector. The collection includes office files, beginning around 1947, including the records of WAPOR's officers; records of the electoral, membership, publications, and other committees; general organizational materials, including historical files and information about elections, meetings, and membership; publication files, including materials relating to WAPOR newsletters and brochures and to the publications of other survey research organizations; information on congresses WAPOR holds in conjunction with ESOMAR (the European Society for Opinion and Market Research), the American Association for Public Opinion Research (AAPOR), and other public opinion research organizations; materials relating to affiliated organizations, including ESOMAR and the International Social Science Council (ISSC); and information relating to other, less closely allied survey research organizations. Some of the files, particularly those from WAPOR's secretariat, are in Dutch, French, and German, but the predominant language is English. The Addition of April 2013 is WAPOR's website, consisting of information about seminars, conferences, and other events; awards and prizes; membership and publicity; internal governance; newsletters, reports, and publications; and association history.