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.

Born in Dublin, Ireland, on November 8, 1847, Bram Stoker published his first literary work, The Duties of Clerks of Petty Sessions in Ireland, a handbook in legal administration, in 1879.

Turning to fiction later in life, Stoker published his masterpiece, Dracula, in 1897. Deemed a classic horror novel not long after its release, Dracula has continued to garner acclaim for more than a century, inspiring the creation of hundreds of film, theatrical and literary adaptations.

In addition to Dracula, Stoker published more than a dozen novels before his death in 1912.

Charles Dickens was born in 1812 and became the most popular novelist of the Victorian era.

A prolific writer, he published more than a dozen novels in his lifetime, including Oliver Twist, Great Expectations and Hard Times, most of which have been adapted many times over for radio, stage and screen.

Sheridan Le Fanu (1814-1873) was an Irish writer of gothic tales, mystery novels and ghost stories, most famous for his novel Uncle Silas. Carmilla was first published in 1872 and has served as an inspiration countless books, from Bram Stoker's Dracula and Henry James' The Turn of the Screw to Anne Rice's Vampire Chronicles, and a slew of films such as Hammer Horror's Karnstein Trilogy.