These two dictionaries, volumes 17 and 19 of the Latin American Historical Dictionaries Series, will be useful reference tools for students of Latin America. The Argentine dictionary offers extensive coverage of historical, geographical, literary, and artistic topics, with additional appendixes entitled List of Presidents, Historical Chronology, and Suggested Readings. The Brazilian dictionary offers more limited commentaries on individual entries and concentrates more on business and industry than on art and literature. However, its bibliography is much more extensive and conveniently divided into sixteen categories.