My profession, anthropology, allows me to wander as an attentive observer, as a worried actor, always anxious to give an accurate account of the everyday life of small communities. I am working on local knowledge in water resource management for the Hadza, the last hunter-gatherers of East Africa and the Maasai breeders in Tanzania. In Greenland, I worked on the impact of hunting quotas on the last Inuit hunters in the northwest of the island, in the Upernavik District. In Amazonia, I focused on the Amarakaeri gold miners and the impact of mercury on health and environment. Photography always accompanies me in these lives between two cultures. It is for me a true mode of literary expression.