Book excerpt: Human Settlement Development is a component of Encyclopedia of Institutional and Infrastructural Resources in the global Encyclopedia of Life Support Systems (EOLSS), which is an integrated compendium of twenty one Encyclopedias. The Theme on Human Settlement Development deals, in nine parts and four volumes , with a myriad of issues of great relevance to our world such as: Urban Sustainability and the Regional City System in the Asia Pacific; Peri-Urbanization: Zones of Rural - Urban Transition; Urban Sustainability: Theoretical Perspectives on Integrating Economic Development and the Environment; Rural Sustainability; Using Foreign Direct Investment to Improve Urban Environmental Infrastructure and Services- The Case of Hanoi, Vietnam; The Long Road Towards Sustainable Cities: The Dutch case; Urban Dimensions of Sustainable Development; Rural Development: Participation and Diversity for Sustainability; The Cities, the State and the Markets: In Search of Sustainability These four volumes are aimed at the following five major target audiences: University and College students Educators, Professional practitioners, Research personnel and Policy analysts, managers, and decision makers and NGOs.