Phnom-Penh - Extensions et Mutations (Cambodian for Phnom-Penh - Expansion and Change) is a non-commercial book to explain what is being done by APUR (Atelier Parisien d'Urbanisme) in Cambodia in the frame of the Decentralized Cooperation between cities of Paris and Phnom Penh. As examples to support their proposition to reorganize the south area of the city by creating an urban lake, Kankaria Lake of Ahmedabad is featured as a benchmark.