4.1 Edward Hopper, Rooms by the Sea
(http://artgallery.yale.edu/pages/collection/popups/pc_amerps/enlarge19.html)

4.2 Keith Haring, Untitled, 1982
(http://www.haring.com/cgi-bin/art_lrg.cgi?date=1982&genre=Painting&start=0&id=00227)

4.17 James Turrell, Live Oak Friends Meeting House, Houston
(http://www.friendshouston.org/building.html)

4.17 James Turrell, Live Oak Friends Meeting House, Houston
(http://www.pbs.org/art21/artists/turrell/clip2.html)

4.21 Charles White, Untitled, 1979
(http://www.thelmaharrisartgallery.com/images/artists/white/white-profile2.html)

4.31 Georges Seurat, A Sunday on La Grande Jatte
(http://www.artic.edu/artaccess/AA_Impressionist/pages/IMP_7.shtml)

4.39 Samuel Fosso, The Chief: He Who Sold Africans to the Colonists
(http://www.centrepompidou.fr/education/ressources/ENS-AfricaRemix/image04.htm)

4.52 Claude Monet, Haystack at Sunset
(http://www.mfa.org/collections/search_art.asp?recview=true&id=32189)

4.56 Eve Sussman, 89 Seconds at the Alcazar
(http://www.rufuscorporation.com/inside_alcazar.html#)

4.56 Eve Sussman, 89 Seconds at the Alcazar
(http://www.roeblinghall.com/artists/sussman/artist-images/back-to-the-camera.jpg)

4.57 Jennifer Steinkamp, Dervish
(http://jsteinkamp.com/html/body_lehmannmaupin.htm)