At Every Depth: Our Growing Knowledge of the Changing Oceans (Columbia UP, 2024) takes readers on a journey from California tidepools to Antarctic poles, showcasing myriad efforts to research and protect marine environments. Through insightful interviews, oceanographer Tessa Hill and science journalist Eric Simons offer a compelling exploration of humanity's relationship with the ocean. They shed light on research methodologies, the ocean's importance, and the vital role of indigenous peoples in ocean stewardship. Tune in to their interview with the New Books Network, where they share stories from how the research came together, how COVID affected their investigation, and what people can do today to build closer relationships with the ocean.