Watershed moment in art- first piece to be done in registers. Made of alabaster. Depicts a hierarchy of life from plants and nature, to animals, humans and then gods. The registers gradually get bigger, showing the importance of the life forms. Communicate an idea in an orderly way. Humans engaged in ritual nudity giving to the gods. Didactic- shows that you should give part of your crop to the gods and in return they will bless you with a good harvest.