Julia Watson is a designer, educator, and author whose work advocates for the integration of traditional and Indigenous knowledge into climate-resilient design. From an early age, she engaged with First Nations ecological perspectives, developing a deep understanding of how human and natural systems co-evolve, a worldview that guides her work. The sequel to Watson's award-winning book Lo—TEK: Design by Radical Indigenism, Lo—TEK Water focuses on the sustainable technologies of Indigenous people who have built water-responsive infrastructures for generations. With writing contributed or co-authored by 22 First Nations from across the globe, from the Visayan of the Philippines to the Nahua Xochimilca of Mexico, the volume explores the deep wisdom of communities whose forms of development both respond to and support natural water systems, rather than resist them. Presenting examples where this ecological knowledge has been used to inform urban design, the book aims to offer a path towards more resilient cities through more engaged, expansive approaches to interdisciplinary collaboration.