The international human rights field is comprised of a broad spectrum of governmental, intergovernmental and non-governmental organizations which focus on the alleviation of human suffering and the protection and promotion of human rights. The field overlaps with key issue areas of peace and security, development, law, humanitarian assistance, and economic and social affairs. Organizations use a variety of disciplines in their approach to social justice, including direct service, advocacy, policy development, and research. Social justice often refers to the overall fairness of a society and the manner in which it divides its rewards and burdens upon groups of people. Working with marginalized groups, social justice agents or advocates are concerned with bringing equality within society. For example, social justice work may include building a bridge to give a certain community better access to the rest of the country or ensuring that a business sector’s hiring practices include considerations for candidates among all ethnic, age, and socio-economic classes.