Roland Barthes was a French literary theorist who wrote the influential essay "Death of the Author" in 1967. In the essay, Barthes argues that the meaning of a text is not defined by the author's intentions, and that the reader is free to interpret the text independently of the author. This perspective represented a shift from structuralism, which viewed the author as the source of a work's meaning, to post-structuralism, which sees meaning as derived from the interaction between text and reader rather than being fixed or authoritative. Barthes' essay was influential in developing theories of post-structuralism that rejected structuralism's claims of a single, authoritative meaning.