Urbanisation is an issue in Tanzania not only because of its lack ofsocial and economic significance but also because of its high growth rateand lack of effective mechanisms to manage its outcomes. Dar es Salaam alone is said to receive between 100,000 to 300,000 people a year. Most of these migrants live in unserviced parts of the city, which threaten their lives and health. The six contributors assess not only the complexity and specificity of the dynamics of Tanzania's urbanisation process, but also the many problems and opportunities inherent in this process.