In 1935, educator and researcher George Gallup (1901–1984) founded the precursor to the Gallup Organization with his creation of the American Institute of Public Opinion. Although the Gallup Organization serves multiple functions in business, management, and consulting, it is best known for its international reputation as a trusted source for measuring public opinion through its numerous and varied Gallup Polls. In addition to its national and global surveys related to multiple social and political matters, the Gallup Organization has also made significant contributions to the field of education through its annual survey of public attitudes related to public schools in conjunction with Phi Delta Kappa (PDK). This entry looks at the organization and its educational role.