Book excerpt: How did scientists, artists, designers, manufacturers and amateur enthusiasts experience and value the sea and its products? Examining the commoditization of the ocean world during the nineteenth century, this book demonstrates how the transaction of oceanic objects inspired a multifaceted material discourse stemming from scientific exploration, colonial expansion, industrialization, and the rise of middle-class leisure. From the seashore to the seabed, marine organisms and environments, made tangible through processing and representational technologies, captivated practitioners and audiences. Combining essays and case studies by scholars, curators, and scientists, Sea Currents investigates the collecting and display, illustration and ornamentation, and trade and consumption of marine flora and fauna, analysing their material, aesthetic and commercial dimensions. Traversing global art history, the history of science, empire studies, anthropology, ecocriticism and material culture, this book surveys the currency of marine matter embedded in the economies and ecologies of a modernizing ocean world.