This document summarizes Julia Kristeva's concept of abjection as theorized in her book Powers of Horror. It discusses how Kristeva was influenced by theorists like Georges Bataille and Mary Douglas in developing her theory. The document is divided into three sections that discuss the relationship between abjection and other concepts, trace changing bodily paradigms in 20th century art, and describe how abjection manifested in artworks described as "abject art" in the 1990s. It provides examples from Kristeva's work of how abjection relates to concepts of purity and danger and how early societies used rituals and taboos around sexuality, menstruation, and childbirth to establish social hierarchies and boundaries