Barker, D. S. 1983. Igneous rocks. Englewood Cliffs, N.J.: Prentice-Hall.

Blatt, H. and R. C. Tracy. 1996. Petrology: Igneous, Sedimentary, and Metamorphic. 2d ed. New York: W. H. Freeman.

Hibbard, M. J. 1995. Petrography to petrogenesis. Englewood Cliffs, N.J.: Prentice-Hall.

MacKenzie, W. S., C. H. Donaldson, and C. Guilford. 1982. Atlas of igneous rocks and their textures. New York: Halsted Press.

http://uts.cc.utexas.edu/~rmr
Rob's Granite Page.
This site has a lot of information related to granite and igneous activity. Many photos as well as information useful to people new to geology and for professionals. There are many links to other sites.