There are three main types of conformity according to the document:
1. Compliance, which involves going along with a group to gain approval or avoid disapproval, but does not reflect a change in underlying attitudes.
2. Internalization, which involves accepting and believing the group's views both publicly and privately.
3. Identification, which involves conforming in order to fit in as a group member and has elements of both compliance and internalization.
The two main explanations for conformity are normative social influence, which is conforming to avoid being rejected or mocked by the group, and informational social influence, which involves accepting information from others as evidence about reality when uncertain.
Key experiments discussed include