Developed in cooperation with the International Baccalaureate (IB), this thought-provoking guide builds knowledge through the core theme, the five optional themes, and the five areas of knowledge. It guides students by helping them examine the nature of knowledge and their own status as a knower. The book develops diverse and balanced arguments with a variety of activities, case studies, and Deeper Thinking features. It aids understanding with in-depth discussions of the twelve course concepts and detailed definitions of all key terms. Assessment support is provided with guidance relating to the TOK Exhibition and Essay. Free online material is available at hoddereducation.com/ib-extras.