Dame Antonia Susan Duffy, known professionally by her former married name, A. S. Byatt, was an English critic, novelist, poet and short story writer. Her books have been translated into more than thirty languages.

Possession: A Romance is a 1990 best-selling novel by English writer A. S. Byatt that won the 1990 Booker Prize for Fiction. The novel explores the postmodern concerns of similar novels, which are often categorised as historiographic metafiction, a genre that blends approaches from both historical fiction and metafiction.