Indonesia, with over 195 million inhabitants, is the fourth-most-populous country in the world (after China, India, and the United States.) Collectively, the people of Indonesia are called Indonesians. However, by one estimate, there are more than 250 distinct cultural groups (sukus) in Indonesia, speaking as many as 700 languages. Among the largest are the Javanese, Balinese, and Sundanese, each of whom is profiled in this chapter. Also profiled in this chapter are the Asmat, an isolated group living on the island of New Guinea. To learn more about the Malays, another important group living in Indonesia, see the chapter on Malaysia in Volume 5.