Jacques Derrida was a French philosopher, born in Algeria. Derrida is best known for developing a form of semiotic analysis known as deconstruction, which he discussed in numerous texts, and developed in the context of phenomenology. He is one of the major figures associated with post-structuralism and postmodern philosophy. During his career Derrida published more than 40 books, together with hundreds of essays and public presentations. He had a significant influence upon the humanities and social sciences, including—in addition to philosophy and literature—law, anthropology, historiography, linguistics, sociolinguistics, psychoanalysis, political theory, religious studies, feminism, and gay and lesbian studies. His work still has a major influence in the academe of Continental Europe, South America and all other countries where continental philosophy is predominant, particularly in debates around ontology, epistemology, ethics, aesthetics, hermeneutics, and the philosophy of language. He also influenced architecture, music, art, and art criticism. Particularly in his later writings, Derrida addressed ethical and political themes in his work. Some critics consider Speech and Phenomena to be his most important work. Others cite Of Grammatology, Writing and Difference, and Margins of Philosophy. These writings influenced various activists and political movements. He became a well-known and influential public figure, while his approach to philosophy and the notorious difficulty of his work made him controversial.

https://en.wikipedia.org/wiki/Jacques_Derrida