Learn the Enneagram
Enneagram Wiki
The free Enneagram encyclopedia. 10 articles, plain words, real sources.
Featured article
Enneagram of Personality: Meaning and the Nine Types
Enneagram meaning explained plainly: the nine-point symbol, the nine enneagram types, the three triads, and what each type's core motivation is about.
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- Enneagram Wings: the Two Types Next to YoursEnneagram wings explained: the two adjacent types beside your core type, how the wing notation works, and a linked list of all 18 wing combinations.
- Enneagram Subtypes: the Three Instincts and 27 VariantsEnneagram subtypes explained: the three instincts (self preservation, social, sexual), how 9 types times 3 instincts makes 27 variants, and why names vary.
- Enneagram Triads: Gut, Heart, and HeadEnneagram triads explained: the gut triad (8, 9, 1), the heart triad (2, 3, 4), and the head triad (5, 6, 7), each built around a core emotion.
- Riso and Hudson: Levels, the RHETI, and Their EnneagramThe Riso Hudson enneagram explained: who Don Richard Riso and Russ Hudson were, the levels of development, the RHETI questionnaire, and their books.
Browse by category
Foundations
What the enneagram is, where it came from and what it means.
Structure & system
Symbol, triads and arrows: how the model fits together.
Types & wings
Wings, levels and the modern type descriptions.
Instincts
Subtypes and the three instinctual drives.
Debate & research
Comparisons with MBTI and what the evidence says.
All articles A to Z
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- Enneagram Arrows: Growth and Stress Lines
- Enneagram Criticism: Accuracy, Validity, Research
- Enneagram History: From Gurdjieff to Modern Tests
- Enneagram of Personality: Meaning and the Nine Types
- Enneagram Subtypes: the Three Instincts and 27 Variants
- Enneagram Triads: Gut, Heart, and Head
- Enneagram vs MBTI: What Is the Difference?
- Enneagram Wings: the Two Types Next to Yours