M. C. Colombi holds a Ph. D. from the University of California, Santa Barbara, and is a Professor of Spanish Linguistics and Language Program Associate Director at UC, Davis. Her research interests include educational linguistics and sociolinguistics with emphasis on Spanish in the United States. Recent publications include Mi lengua: Spanish as a Heritage Language in the U.S., coedited with Ana Roca (GUP: 2003), Developing Advanced Literacy in First and Second Language, coedited with Mary Schleppegrell (LEA, 2002); Palabra abierta, coauthored with Jill Pellettieri and Mabel Rodriguez (Houghton Mifflin, 2007), La ensenanza del espanol a hispanohablantes: Praxis y teoria, coedited with… Francisco X. Alarcon (Houghton Mifflin, 1997).
Jill Pellettieri is an Associate Professor of Spanish at Santa Clara University. Her areas of expertise include second language acquisition, computer-assisted language learning, and second language writing. In addition to RUMBOS and other Spanish instructional texts and materials, she also authors the best-selling PLAZAS Workbook.