Textbooks:
Gardner's Art through the Ages: A Global
History
Fred S. Kleiner
ISBN-10: 0495093076, ISBN-13: 9780495093077, © 2009
ISBN-10: 0495093076, ISBN-13: 9780495093077, © 2009
Any edition will be good. Cover images are different. The best way to purchase is used.
Websites:
The is just one of many. It depends on the edition; the one shown above is eleven.