The Library of Water has two art pieces within it. Water, Selected contains water samples taken from 24 glaciers around Iceland. The water is contained in glass columns that are spread irregularly around the library space. The light in the columns is quite beautiful, and while there doesn´t appear to be much difference between the waters, you can see bits of different kinds of sediment at the bottoms of the columns.
On the floor is a piece called You Are The Weather (Iceland). It consists of Icelandic and English words that can be used to describe the weather. The floor is made of some slightly sticky rubbery material, and the text is made of different colored pieces of the same material cut out and placed in the floor. So as not to mess the floor up or leave sock fuzzies all over it, you take your shoes off at the entrance and put on white, plastic-bottomed slippers.