A thin, translucent layer of pigment, usually watercolor or India ink. Often it is the background of a picture, prepared using watery paint applied quickly using large, sweeping brush strokes.
Example: Helen Frankenthaler's Bay Side, 1967
A painting or sculpture whose composition, colors, and subject are selected to tell a story.
Example: Trajan's Column, Rome, Italy, 113
An aspect of modern art in which pieces of art contain no recognizable figures or objects, as opposed to figurative art.
Example: Sam Francis' Around the Blues, 1957/1962
A very pale blue that is invisible to a camera or photocopier. A non-photo pen or pencil may be used to make notes on an original: paper may be printed with a non-photo blue grid to allow for easy line-up. In either case, as copiers become more sensitive, you should advise your customer to test these products first.