There are two categories of social control - formal and informal. Formal social control involves established laws and institutions like the police, courts, and prisons that enforce rules through punishments. Informal social control consists of unwritten social norms enforced through socialization by agents like family, teachers, and peer groups using positive and negative sanctions like praise, acceptance, and disapproval. Social control, whether formal or informal, works to ensure members of a society adhere to its shared norms, values, and laws.