The term 'ART CATEGORIES' can be broken down into two crossword solutions: GENRES (6 letters) and STYLES (7 letters). ART CATEGORIES refer to the various ways in which ART is classified. GENRES are broad classifications of ART that are based on the subject matter, content, and purpose of the artwork. Examples of GENRES include landscape, portrait, still life, and abstract. Styles, on the other hand, refer to the way in which the artwork is created. Styles are based on the techniques, materials, and visual elements used by the artist. Examples of styles include impressionism, cubism, surrealism, and expressionism.