Compiled by the Hispanic Division of the Library of Congress and annotated by a corps of more than 130 specialists in various disciplines, the Handbook alternates from year to year between social sciences and humanities. The Handbook annotates works on Mexico, Central America, the Caribbean and the Guianas, Spanish South America, and Brazil, as well as materials covering Latin America as a whole. Most of the subsections are preceded by introductory essays that serve as biannual evaluations of the literature and research under way in specialised areas. The Handbook of Latin American Studies is the oldest continuing reference work in the field. Lawrence Boudon became the editor in 2000.