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.

Sir Arthur Conan Doyle was born in Edinburgh in 1859 and died in 1930. Within those years was crowded a variety of activity and creative work that made him an international figure and inspired the French to give him the epithet 'the good giant'.

He was the nephew of 'Dickie Doyle' the artist, and was educated at Stonyhurst, and later studied medicine at Edinburgh University, where the methods of diagnosis of one of the professors provided the idea for the methods of deduction used by Sherlock Holmes. He set up as a doctor at Southsea and it was while waiting for patients that he began to write.

His growing success as an author enabled him to give up his practice and turn his attention to other subjects. His greatest achievement was, of course, his creation of Sherlock Holmes, who soon attained international status and constantly distracted him from his other work; at one time Conan Doyle killed him but was obliged by public protest to restore him to life.

And in his creation of Dr Watson, Holmes's companion in adventure and chronicler, Conan Doyle produced not only a perfect foil for Holmes but also one of the most famous narrators in fiction.

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.

Edgar Allan Poe (1809-1849) is one of America's greatest and best-loved writers.

Known as the father of the detective story, Poe is perhaps most famous for his short stories particularly his shrewd mysteries and chilling, often grotesque tales of horror he was also an extremely accomplished poet and a tough literary critic.

Poe's life was not far removed from the drama of his fiction. Orphaned at a young age, he was raised by a foster family. As a young man, he developed problems with gambling, debts, and alcohol, and was even dismissed from the army.

His love life was marked by tragedy and heartbreak. Despite these difficulties, Poe produced many works now considered essential to the American literary canon.

Arthur Machen (Arthur Llewelyn Jones), a Welsh author of supernatural, fantasy, and horror fiction, was born on March 3, 1863. He grew up in Caerleon, Monmouthshire, and attended boarding school at Hereford Cathedral School.

He moved to London in 1881 and worked as a journalist, children's tutor, and publisher's clerk, finding time to write at night. By 1894, Machen had his first major success.

The Great God Pan was published by John Lane, and despite widespread criticism for its sexual and horrific content, it sold well and went into a second edition.

In the 1920s Machen's work became immensely popular in the United States, but Machen experienced increasing poverty; he was saved in 1931 by receiving a Civil List pension from the British government. Arthur Machen died on March 30, 1947.

Dion Fortune (1891-1946), founder of The Society of the Inner Light, is recognised as one of the most luminous figures of twentieth-century esoteric thought. A prolific writer, pioneer psychologist, powerful psychic and spiritualist, she dedicated her life to the revival of the Western Mystery Tradition. She was a member of the Order of the Golden Dawn, whose members included at various times such people as A.E. Waite, Aleister Crowley, and W. B. Yeats.