The series “Urban Water and Sanitation Services; An IWRM Approach”, published in June 2006 by the Global Water Partnership (GWP) Secretariat in Stockholm has been created to disseminate the papers written by Judith A. Rees and commissioned by the Technical Committee (TEC) to address the conceptual agenda. Issues and sub-issues with them, such as the understanding and definition of Integrated Water Resources Management (IWRM), water for food security, public-private partnerships, and water as an economic good have been addressed in these papers.