Book excerpt: Filippo and Caroline Osella, anthropologists who spent three years in rural Kerala, south India, write about the modern search for upward social mobility: the processes involved, the ideologies that support or thwart it, and what happens to the people involved. They focus on the caste called Izhavas, a group that in the mid-19th century consisted of a small land-owning and titled elite and a large mass of landless and small tenants who were largely illiterate and considered untouchable, and who eked out a living by manual labor and petty trade. In the 20th century, Izhavas pursued mobility in many social arenas, both as a newly united caste and as families. The work considers how successful the mobility has been and looks at the effects on their society of an ethos of progress. Distributed by Stylus. Annotation copyrighted by Book News Inc., Portland, OR