Rachel Whiteread

Rachel Whiteread does mold-making and casting work. Her art thinks about space in a unique way. Most of the time she does not caste actual objects but the negative space around them. Looking at her pieces forces one to begin looking at space in an entirely different manner.
The above piece is the inside of an abandoned house caste in cement.
The piece below is the space between bookshelves in a library caste in plaster.