Social justice (SJ) is not a “newly discussed” issue. It has made a mark on the history of humanity. It was one of the most frequently discussed concerns of earlier religious and philosophical traditions for both their own context and other contexts around the world. Almost all disciplines, including philosophy, politics, sociology, psychology, anthropology, and education, have been in search of a just world for people and have tried to find an answer to the question of what a socially just society is.
Social justice has been a debated issue on the agendas of educational researchers, too. Similar to other fields, research on social justice in education has been attempting to describe and analyze its meaning and nature in educational settings. Educational researchers have made significant efforts to provide a definition of social justice in schools and to open the black box of social justice delivered to schools. In education, social justice, in short, may be seen as a fact directly related to providing equal opportunities for everyone in schools regardless of race, ethnicity, culture, social class, wealth, gender, family structure, sexual orientation, disability, and so on. This urges school leaders to be aware of their central roles and responsibilities in terms of justice issues in their schools, and this makes it very clear that a just school depends on leaders believing in social justice. In other words, school leaders and their efforts to create a just school have explicit effects on justice issues in schools.