Mme Westerman's LingT Assignments
If it's a modern artist, see if you can find their official website.
example: Dina Bursztyn's official site: http://www.potatospirit.com/statement.html
BEWARE!!!! Some sites are fakes, like this one: http://www.remediosvaro.org/
If an older artist, maybe there is a museum dedicated to them.
exmaple: Pablo Picasso Museum in Barcelona: http://www.bcn.cat/museupicasso/en/picasso/timeline.html
You can use the links at the bottom of a Wikipedia article to find more reliable sources.
Use an Approved Encyclopedia or Database:
Access to Encyclopedia Britannica:
Here's the link: http://school.eb.com