Infrastructure is a marvel, meeting our basic needs and enabling lives of astounding ease and productivity that would have been unimaginable just a century ago. Engineer and materials scientist Deb Chachra takes readers on a fascinating tour of these essential utilities, revealing how they work, what it takes to keep them running, just how much we rely on them–but also, who they work well for, and who pays the costs. These systems are suffering from systemic neglect and the effects of climate change, and marginalised communities often bear the brunt of these failures. Chachra maps out a path for transforming and rebuilding our shared infrastructure to be not just functional, but also equitable, resilient and sustainable. The cost of not being able to rely on these systems is unthinkably high. We need to learn how to see them–and fix them, together–before it's too late.