The professional activities files include materials collected by anthropologist Katherine Spilde during her employment with the National Gambling Impact Study Commission (NGISC), the National Indian Gaming Association (NIGA), and the Harvard Project on American Indian Economic Development (HPAIED). The materials date from 1980 to 2005, with the bulk of materials dating from 1995 to 2005. The materials document the institutional research of NGISC, NIGA, and HPAIED as well as the legal and regulatory history of Native American gaming in the United States. Also included to a lesser extent are materials from her work with the National Congress of American Indians (NCAI) and Bureau of Indian Affairs (BIA) Data Management, Needs Assessment, and Auditing Workgroup; the National Indian Gaming Association (NIGA) and the National Congress of American Indians (NCAI) Joint Task Force; and the National Council on Problem Gambling. The series contains research and subject files created by Dr. Spilde during her employment with various agencies of the federal government and universities. The series includes socioeconomic reports, testimonies, correspondence, memos, press releases, audiovisual materials, promotional materials, pamphlets, brochures, booklets, journal articles, legal briefs, legislative documents, notes, presentations, conference materials, and newspaper articles.