Lena Keller-Bischoff is a Social and Cultural Anthropologist (M.A.) researching on social dimensions of waste. Together with local research partners she conducted ethnographic field researches in Indonesia and critically juxtaposed two types of waste banks: civil society waste banks and waste banks funded by the local government and Unilever CSR. In her previous field researches Lena worked with the World Fair Trade Organization and analyzed labour conditions in Indonesian Fairtrade Organizations. Lena has worked in the field of International Development and has extensive expertise in socio-cultural concepts relevant for waste practices, in participatory community approaches and in methods that enable reflection on postcolonial tendencies/North-South asymmetries. In her teaching assignments at Freiburg University Lena teaches Ethnographic Methods.