The Associated Concepts hierarchy contains terms for concepts and phenomena relating to a wide range of topics, including topics not directly related to art, for example philosophical concepts. Relation to other hierarchies: Terms for branches of learning and areas of specialization, as well as professions and professional specialties, (e.g., "history") are found in the Disciplines hierarchy, while concepts associated with these disciplines (e.g., "positivism ") appear here. Terms for styles and for art and architecture movements (e.g., "Neoclassical," "Impressionist") are found in the Styles and Periods hierarchy, while forms of expression (e.g., "abstraction") and broad categories of art and architecture that are not specific to a given people or period (e.g., "organic architecture," "street art") are here.
