This first volume of E-waste manual aims to build the capacity of practitioners and policy makers for preparing WEEE/E-waste inventories. The objective of the manual is to identify E-waste as an environmental issue and to quantify it. It summarizes the available legislation on WEEE/E-waste in different countries and provides a methodology to design and use E-waste inventory assessment studies/projects. Furthermore, the E-waste management chain (starting from electrical and electronic equipment manufacture, production, import, consumption, E-waste generation, treatment and disposal) has been discussed to identify the "mechanism of trading" and related socio-economic and environmental risks. Methodologies for E-waste inventory assessment in a city/geographical area/country have been elaborated with reference to developing countries. The manual also provides case studies from developing countries.