ArtLex
Art Lex: Emphasis
A complete description of the term, "emphasis," with links to show how emphasis relates to art. Includes examples of work by Klimt, Demuth, and Minor.
ArtLex
Art Lex: Composition
This online dictionary of art terms from Artlex is a valuable tool. The composition page explains how the term is used in the world of art. There are related links and works of art to explore.