The Enneagram is a personality system that identifies nine distinct types, each with unique motivations, fears, and behaviors. These types are:

The Reformer: Principled, purposeful, self-controlled, and perfectionistic.
The Helper: Caring, interpersonal, demonstrative, generous, people-pleasing, and possessive.
The Achiever: Success-oriented, pragmatic, adaptive, excelling, driven, and image-conscious.
The Individualist: Sensitive, withdrawn, expressive, dramatic, self-absorbed, and temperamental.
The Investigator: Intense, cerebral, perceptive, innovative, secretive, and isolated.
The Loyalist: Committed, security-oriented, engaging, responsible, anxious, and suspicious.
The Enthusiast: Busy, fun-loving, spontaneous, versatile, distractible, and scattered.
The Challenger: Powerful, dominating, self-confident, decisive, willful, and confrontational.
The Peacemaker: Easygoing, self-effacing, receptive, reassuring, agreeable, and complacent.