The Schools and Staffing Survey, 2007-08 (SASS 07-08), is a study that is part of the Schools and Staffing Survey (SASS) program. SASS 07-08 (https://nces.ed.gov/surveys/sass/) is a cross-sectional survey that collects data on public, private, and Bureau of Indian Education (BIE) elementary and secondary schools across the nation. The survey was primarily conducted through the use of mailed paper questionnaires. Nonresponse follow-up interviews were conducted using computer-assisted telephone interviews and face-to-face paper interviews. Teachers, librarians, principals, and districts were sampled. Key statistics produced from SASS 07-08 included how many teachers remained at the same school, moved to another school, or left the profession in the year following the SASS administration.