For every collection development librarian seeking to stay current with the latest reference titles on the market, fill in gaps in their collection, and buy only the best new titles available for their type of library, American Reference Books Annual 2011: 2011 Edition, Volume 42 is a "must-have" resource guide. This latest version of American Reference Books Annual (ARBA) comprises four main sections: General Reference Works, Social Sciences, Humanities, and Science and Technology. Each individual chapter is further organized by type of title, such as dictionaries and encyclopedias, handbooks and yearbooks, biographies, indexes, and bibliographies. Coverage extends beyond reference titles to include academic, general, and children's reference sources. The reviews of reference books, databases, and other resources published during a single calendar year are critical evaluations rather than simple annotations. Written collectively by a team of professional, practicing librarians, ARBA 2011 is a priceless collection development tool in academic, public, and school library settings.