Theory of Knowledge is assessed, but not in the form of an exam. Instead, there are two parts of the assessment: an essay on a prescribed title and, new to this specification, the "TOK exhibition." The essay is marked externally and is worth 67% of the marks. The Exhibition is marked internally (but moderated externally) and worth 33% of the marks. More information about each aspect of the assessment can be found on their respective web pages. The essay is based on the areas of knowledge. The exhibition is on how TOK manifests itself in the world around us.