I've been inspired to really look at the way colors work, how they interact, what they are made of, where they are from, by a book called Color in Art by John Gage.
Here's a detail of a lovely column inlaid with mosaic in North Beach. I'd like to study and try my hand at mosaic, as it is a very satisfying kind of artwork -- dimensional yet essentially flat, narrative and abstract -- but it is too large a format for my small home studio. I especially like how broken things are reused and the randomness of color that creates a unified field. The scale and the amount of stuff needed for mosaic requires such a large spaces and architectural opportunities for installation. When it is done well, though, it wonderfully defines the palette, colors, and textures of city walls and street elements.