This paper reviews the current state of knowledge on desegregation in the nation's schools. It discusses justifications for and definitions of desegregation. It attempts to answer the following questions: What progress has been attained in the desegregation of schools? What have been the consequences? Which practices have been successful? What questions remain? Specific areas of concern addressed in the answers include: student success in school, racial harmony, desegregation and student withdrawal, staff desegregation and development, school reform, federal assistance, ethnic proportions of students and volunteerism. It is concluded that we are ignorant about the consequences of specific actions used to desegregate schools. More research is suggested. (Author/JP)