ArtLex
Art Lex: Islam and Islamic Art
A dictionary entry for Islam and Islamic art with numerous illustrations of representative works in all media, including architecture, ceramics, metalwork, textiles, and manuscripts. Includes useful cross-references to related terms and...
Other
The Alphabet of Art: Shape
Definition of shape as it applies to the visual arts with examples by Duchamp and McKnight. Links to definitions of other elements of art.
National Council of Teachers of Mathematics
The Math Forum: Geometry Through Art: Inscribed Triangles
This resource contains examples of triangles inscribed in circles to form art.