|Chair Shadow on Shell Pavement, Freshfields, John's Island, SC © Doug Hickok|
"A raster is usually a very fine-grained and always strict order principle on a surface. As a special category of pattern, it is not generally a design element - unless it is used as an artistic means to evenly mark a surface."
This quote is from Harald Mante, my Favorite Photographer Friday selection. This German photographer has had the strongest influence on the way I see images. He is a highly regarded teacher of photography, and his book The Photograph, Composition and Design is the best one I know of for demonstrating the art of visual design.