Elizabeth E. Guzman is the Director of the Elementary and Intermediate Spanish Language Program at the University of Iowa. Previously, she served as Language Coordinator at St. John's University/College of St. Benedict, Director of the Spanish Program at Yale University, and Coordinator and Co-Director of the Elementary and Intermediate Language Program at The University of Michigan. In her native Chile, she supervised instructors of English as a Foreign Language. Ms. Guzman received her B.A in English from Universidad de Santiago (Chile) and her M.A. in English as a Second Language from West Virginia University, and then pursued doctoral studies at the University of Pittsburgh. She is a co-author of Pearson's Unidos, Identidades and several earlier editions of Mosaicos. Paloma Lapuerta holds the title ofProfessor of Spanish at Central Connecticut State University, where she teaches courses in Spanish language, culture, and literature. She has over twenty years of teaching experience at higher institutions around the world, including Spain, Switzerland, South Africa, and the United States, where she has taught at the University of Michigan, Dartmouth College, and the Middlebury College Spanish School. She completed her Licenciatura in Spanish Philology at the University of Salamanca, and she holds a Ph.D. in Spanish literature from the University of Geneva, Switzerland. She has published numerous articles and a book on Spanish culture and literature. She is a co-author of Pearson's Unidos, Identidades, La escritura paso a paso, and earlier editions of Mosaicos, all published by Prentice Hall. Judith E. Liskin-Gasparro is a professor of Spanish at the University of Iowa, where she teaches courses in second language acquisition, pedagogy, and Spanish language. She is the co-director of FLARE (Foreign Language Acquisition Research and Education), which offers an interdisciplinary doctoral program in Second Language Acquisition, and she was formerly the Director of the Elementary and Intermediate Spanish Language Program. Previously, she taught at Middlebury College and worked as a test development consultant at Educational Testing Service. She received her A.B. in Spanish from Bryn Mawr College, her M.A. from Princeton University and her Ph.D. from the University of Texas at Austin in Foreign Language Education. She has published articles and books on language learning and teaching and has led many workshops for language teachers.She is a co-author of Pearson's Unidos, Identidades, La escritura paso a paso, and earlier editions of Mosaicos, all published by Prentice Hall.
