Dino F. Felluga, an English professor at Purdue University, created the Undergraduate Guide to Critical Theory to introduce students to the specialized vocabularies and key concepts underlying various schools of literary theory. This guide defines the specific terminology and analytical approaches taken by theorists of new historicism, cultural materialism, feminism, and psychoanalysis. Within the guide, the critical methods are applied to "Sonnet 37" and "Sonnet 74" of Spenser's Amoretti to present examples of textual interpretation.