Senga Mutombo led her seven Congolese brothers to Johannesburg. She is now a regular trader in the Yeoville market but also, in her own way, the centre of a trade network that spans sub-Saharan Africa in a lattice of low-end globalisation. In Inside Out, writer and urban planner Tanya Zack and photographer Mark Lewis trace a story of food and other commodities traded and retailed informally across South Africa’s borders by people like Sengo, using the same principles as multinationals, but with no formal credit or banking facilities.