If you're interested in a broad topic in Latin American Studies, or would like to browse for inspiration, try one of these Library of Congress call letters:
Locations of print books:
Cambridge Companions are a series of authoritative essay collections that synthesize the most important aspects of a topic. Each volume is edited by a leading scholar in the field and offers essays written by experts. Look for Companions on specific authors, genres, themes or movements, and time periods.
Use Google Books to search the text of a book.