1. Core Theme: Knowledge and the Knower
2. Optional Themes
3. Areas of Knowledge
3.1 History
3.2 The Human Sciences
3.3 The Natural Sciences
3.4 The Arts
3.5 Mathematics
4. TOK Assessments
5. May 2026 TOK Titles
3.1.1 How Historians Build Knowledge
3.1.2 Why History Keeps Changing