A veteran of the American Civil War who fought at Shiloh and Chickamauga in the Union ranks, Bierce became one of America's best-known writers and journalists, admired for his insolent, entertaining and sometimes courageous columns.

In 1913 he set off for Mexico, then in the throes of revolution, and was never seen again. Ralph Steadman is the author of many illustrated books including Sigmund Freud, I Leonardo, The Big I Am, The Scar-Strangled Banner, Alice and Animal Farm. His most recent publication is the novel, Doodaaa.

James Joyce was born in Dublin on 2 February 1882, the eldest of ten children in a family which, after brief prosperity, collapsed into poverty. He was none the less educated at the best Jesuit schools and then at University College, Dublin, and displayed considerable academic and literary ability.

Although he spent most of his adult life outside Ireland, Joyce's psychological and fictional universe is firmly rooted in his native Dublin, the city which provides the settings and much of the subject matter for all his fiction.

He is best known for his landmark novel Ulysses (1922) and its controversial successor Finnegans Wake (1939), as well as the short story collection Dubliners (1914) and the semi-autobiographical novel A Portrait of the Artist as a Young Man (1916). James Joyce died in Zurich, on 13 January 1941.

O. Henry (1862-1910) had a short but colourful life. Born William Porter in Greensboro, North Carolina, he initially worked as a pharmacist before moving into journalism. In 1896 he was arrested for embezzling funds while working as a bookkeeper for a bank.

In a moment of madness, he absconded on his way to the courthouse before his trial and fled to Honduras for six months. He returned to face trial after learning that his wife was dying of tuberculosis and served three years in jail. While in prison, he adopted the pen name O. Henry, and after his release he found great fame and popularity as a short story writer.