Please note that the content of this book primarily consists of articles available from Wikipedia or other free sources online. Swahili (Kiswahili) is a Bantu language spoken by various ethnic groups that inhabit several large stretches of the Indian Ocean coastline from northern Kenya to northern Mozambique, including the Comoros Islands. Although only 5-10 million people speak it as their native language, Swahili is also a lingua franca of much of East Africa and the Democratic Republic of the Congo, is a national or official language of four nations, and is the only language of African origin among the official working languages of the African Union.