For further reading on communicating information, see Tufte (1990), Tufte (1997), and Tufte (2001). The books also outline good and bad practices in the design of graphs.
The graphs outlined here are essential for exploratory data analysis. There are many alternative charts in addition to the ones described in this chapter. The following web sites describe numerous ways of displaying information graphically: http://www.itl.nist.gov/div898/handbook/eda/eda.htm, http://www.statcan.ca/english/edu/power/toc/contents.htm.