The blue humanities is a new field of research promoting a shift of perspective by drawing attention to the importance of water for our blue planet. All living bodies contain and depend on water, and its impact is reflected in human culture, history, and literature. The blue humanities recognizes water as a substance that appears in several physical states and with several functions, as a liquid, gas, and solid, as phenomena such as clouds, fog, rain, snow, or steam, and as concrete bodies of water, such as ice caps, glaciers, rivers, and seas. Blue humanities scholars argue that a focus on water and its cultural representations can offer fundamentally new vistas onto human interactions with the more-than-human world as well as with other humans. This is particularly pronounced in anglophone research, on which this chapter concentrates. Not only does such hydro-criticism highlight the ubiquity of water and the connections it creates between bodies, objects, and environments, but it also makes visible how thinking with water and acknowledging its specific characteristics could shape alternative mindsets and challenge established concepts such as territory, nation-state, or bounded subjects.