There is a similar question to be asked about where craft ends and art begins. Is a well designed chair a work of art or is it always just a seat? Was Chippendale a craftsman or an artist? Alessi? Issigonis? Is wallpaper art if it was designed by William Morris or Andy Warhol. Is wallpaper art if you can buy it in B&Q?
Practical skill guided by rules. What rules? Who decides? Did Joyce or Van Gogh have the rule book? Human skill as opposed to nature. Can a photo of a landscape ever be considered art?
Chamber's is a start but it hasn't really helped. We'll try again tomorrow.
Warhol by Phil (oil on tarmac, 2012)