An autobiography (from the Greek auton, 'self', bios, 'life' and graphein, 'write') is biography written by the subject or composed conjointly with a collaborative writer (styled "as told to" or "with"). The term dates from the late eighteenth century, but the form is much older.
Biographers generally rely on a wide variety of documents and viewpoints; an autobiography may be based entirely on the writer's memory. A name for such a work in Antiquity was an apologia, essentially more self-justification than introspection. John Henry Newman's autobiography is his Apologia pro vita sua. Augustine applied the title Confessions to his autobiographical work (and Jean-Jacques Rousseau took up the same title). Probably the most famous German autobiography is still Goethe's Dichtung und Wahrheit.