Anthropologists study the origin and behavior of humans. Economists study how products are made, how they are distributed, and how they are used. Geographers study the physical make-up of the land and how it affects human life. Historians study the past. Political scientists study the political systems and public policy.
Psychologists study human behavior.
They counsel or advise individuals or groups. Sociologists study human society and social behavior. They do this by looking at the groups and institutions that people form. They also study social, religious, political, and business organizations. Specialists in one area often find that their work overlaps with a specialist in another area.