Bioelectrochemical Systems puts a spotlight on promising technologies currently taking shape on the clean energy and waste management frontiers. In this Chats in the Stacks book talk at Mann Library, contributing editor and professor of biological and environmental engineering Lars Angenent explains what a bioelectrochemical system is, gives examples of its useful application, and highlights current research on wastewater-to-product conversion and biosensors being pursued in the Angenent lab.