This report presents estimates of four types of newly hired teachers: newly prepared teachers, delayed entrants, transfers, and reentrants. It describes their demographic characteristics, teaching qualifications, career paths, and former occupations from the 1987-1988, 1990-1991, and 1993-1994 Schools and Staffing Surveys. Between 1987-1988 and 1993-1994, a shift in sources of newly hired teachers occurred as public school districts and private schools hired relatively more first-time teachers and relatively fewer reentrants. In school year 1993-1994, the relative contributions of first-time teachers, transfers, and reentrants to the supply of newly hired teachers were similar, and the relative importance of these groups as sources were the same in both public and private sectors. Like the teacher workforce as a whole, newly hired teachers in 1993-1994 were predominantly female and predominantly white non-Hispanic, although less so than the teacher workforce as a whole. The percentage of newly hired minority teachers increased. Many new hires gained access to teaching jobs through substitute teaching. (Contains 9 tables, 4 figures, and 25 references.) (SLD)