Paul Kay is professor emeritus of linguistics at the University of California, Berkeley. Brent Berlin is the Graham Perdue Professor of Anthropology at the University of Georgia. Luisa Maffi is cofounder and director of Terralingua, an organization that promotes bio-cultural diversity. William R. Merrifield was a member of the Summer Institute of Linguistics and professor at the University of Texas, Dallas. Richard Cook is a researcher with the Sino-Tibetan Etymological Dictionary and Thesaurus Project in the Department of Linguistics at the University of California, Berkeley.