Publications Building from Waste BIRKHÄUSER, 2014, WITH HEBEL, Heisel Building from Waste Addis Ababa: A Manifesto on African Progress RUBY PRESS, 2019, WITH HEBEL, Heisel, NASH Addis Ababa: A Manifesto on African Progress City in Your Hands Swiss Federal Institute of Technology in Zurich, 2019, WITH schmitt, tapia City in Your Hands