Core Texts

First off, Spiegel's syllabus is awesome, and contains many useful links.

I'm tracking down her suggested required text:

Tyson, Lois. Critical Theory Today: A User-friendlly Guide. NY: Garland Publishing, 2nd Ed., 2006.

I've also got...

Eagelton, Terry. Literary theory: An Introduction. Minneapolis: U of Minnesota P, 1983.
Gutting, Gary. Foucault: A Very Short Introduction. Oxford UP, 2005.
Hall, Vernon. A Short History of Literary Criticism. NYUP, 1963.
Klages, Mary. Literary Theory: A Guide for the Perplexed. Continuum, 2006.
Ryan, Michael. Literary Theory: A Practical Introduction. Blackwell, 1999.
Story, John. Ed. Cultural Theory and Popular Culture, 4th ed. 2009.

And surely, internet sources will be handy and citeable as the learning goes on.