No longer dismissed as an insomnia-curing corner of local governance, zoning is having a moment. It’s at the heart of the pro-housing Yes In My Backyard — or YIMBY — movement, which seeks to reform the rules that mandate the construction of single-family homes across much of the US, and the arcane details of land use policy are being debated in national outlets and city councils across the US. In much of this discourse, zoning is the clear villain, blamed for feeding societal ills ranging from housing costs to racial discrimination to greenhouse gas emissions.

In her new book Key to the City, Sara Bronin examines zoning with a critical but sympathetic eye. Bronin brings deep experience to the topic, having studied zoning as an architect and lawyer before overhauling the land use regulations of Hartford, Connecticut. A professor of architecture and planning at Cornell University (and an occasional Bloomberg CityLab contributor), she is currently on leave to chair the federal Advisory Council on Historic Preservation.