Guadalupe Valdés is the Bonnie Katz Tenenbaum Professor of Education at Stanford University. Much of her work has focused on the English-Spanish bilingualism of Latinos in the United States and on discovering and describing how two languages are developed, used, and maintained by individuals who become bilingual in immigrant communities. Her books include Bilingualism and testing: A special case of bias (Valdés & Figueroa, Ablex, 1994), Con respeto: Bridging the distance between culturally diverse families and schools (Teachers College Press, 1996), Learning and not Learning English (Teachers College Press, 2001), Expanding Definitions of Giftedness: Young Interpreters of Immigrant Background (Lawrence Erlbaum, 2003), Developing minority language resources: The case of Spanish in California (Valdés, Fishman, Chavez & Perez, Multilingual Matters, 2006) and Latino Children Learning English: Steps in the Journey (Valdés, Capitelli & Alvarez, Teachers College Press, 2010)