This introduction to ontology views the history of Western philosophy as a constant battle between the Giants and the Gods of Plato's "Sophist". The author discusses in detail the important metaphysical debates that lie at the heart of the battle between the naturalists and ontologists. Beginning with the history of the nominalist vs realist debate about universals, the author develops an enquiry into nature and the existence of categories such as relations, structures, numbers and facts. In the final part, he argues that existence and negation are not categories but features of the world.
