USE simple words or phrases, like "community arts" or "public art."
Artwork Name - both the official name and any previous names
Artist's Name - Mark Dion, Candy Chang
Methods or Materials - mural, oil paint, sculpture
When you find a useful book, check its catalog record for subject headings which will link you to other books on the same topic. Or, try using the subject headings listed on the left-side margin of this page.