Whether it's fly-fishing at the lake, or sailing on the open ocean, water figures very largely in our summer activities; that it makes up most of the earth's surface and the human body means that it is a central element in our lives. It is only natural, then, that water should also be a major symbol in literature, and we can see this from the Old Testament to Moby Dick. For our latest e-catalogue, we have therefore pulled together a surprisingly diverse group of books in which water plays a thematic role.