This textbook contains an overview of the various types of knowledge, their sources and limitations. Specifically written to cover the Theory Of Knowledge IB course, it can also be used as an introductory reader, class stimulus text or assignment resource book.

The ToK book provides:

- Clear explanations of essential logical concepts and distinctions

- Comprehensive Theory of Knowledge syllabus coverage

- A controlled vocabulary with glossaries attached to each chapter

- Relevant, challenging, up-to-date examples

- Detailed case studies illustrating important points

- Treatment of the material beyond the level of immediate, facile scepticism

- Index of concepts

- You will never be short of relevant material on any part of a two-year course

- Your course will be one with substance, which will stretch the students, generate insight, help them develop their critical faculties, and prepare them with the necessary logical and conceptual apparatus to tackle the essay questions.

- The relevance of your Theory of Knowledge (ToK) course, both to contemporary issues and the students' own education will be evident to them.