University of California, San Diego: Edward A. Bender and S. G. Williamson's "Basic Concepts in Graph Theory"

Read this chapter for an introduction to graph theory.

Click https://s3.amazonaws.com/saylordotorg-resources/wwwresources/site/wp-content/uploads/2011/09/CS202-Graph-Theory-GT-Edward-Bender.pdf link to open resource.