Samuel Langhorne Clemens, better known by his pen name, Mark Twain, was born on November 30, 1835, in the tiny village of Florida, Missouri.

Writing grand tales about Tom Sawyer, Huckleberry Finn and the mighty Mississippi River, Mark Twain explored the American soul with wit, buoyancy, and a sharp eye for truth. He became nothing less than a national treasure.

Jack London (1876 - 1916), lived a life rather like one of his adventure stories. He was born John Chaney, the son of a travelling Irish-American fortune-teller and Flora Wellman, the outcast of a rich family. By the time Jack was a year old, Flora had married a grocer called John London and settled into a life of poverty in Pennsylvania. As Jack grew up he managed to escape from his grim surroundings into books borrowed from the local library - his reading was guided by the librarian.

At fifteen Jack left home and travelled around North America as a tramp - he was once sent to prison for thirty days on a charge of vagrancy. At nineteen he could drink and curse as well as any boatman in California! He never lost his love of reading and even returned to education and gained entry into the University of California. He soon moved on and in 1896 joined the gold rush to the Klondyke in north-west Canada. He returned without gold but with a story in his head that became a huge best-seller - The Call of the Wild - and by 1913 he was the highest -paid and most widely read writer in the world. He spent all his money on his friends, on drink and on building himself a castle-like house which was destroyed by fire before it was finished. Financial difficulties led to more pressure than he could cope with and in 1916, at the age of forty, Jack London committed suicide.

Titles such as The Call of the Wild, The Sea-Wolf and White Fang continue to excite readers today.

The writing career of Herman Melville (1819 - 1891) peaked early, with his early novels, such as Typee becoming best sellers.

By the mid-1850s his poularity declined sharply, and by the time he died he had been largely forgotten.

Yet in time his novel Moby Dick came to be regarded as one of the finest works of American, and indeed world, literature, as was Billy Budd, which was not published until long after his death, in 1924.

American author Pearl Zane Grey (1872–1939) is best known for his popular adventure novels and their idealised images of the Old West. His successful books, including Riders of the Purple Sage, achieved second lives with adaptations for television and more than 100 movies.

Mary Mapes Dodge (1831 1905) was born into a well-educated family in New York. After her husband 's death, she began a writing career in order to support her sons.

Best known for Hans Brinker or The Silver Skates, which was an instant success and won her lasting popular attention, Mary Dodge was also a successful poet and magazine editor.

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.

Henry David Thoreau (1817-62) was born in Concord, Massachusetts and educated at Harvard. He became a follower and a friend of Emerson, and described himself as a mystic and a transcendentalist.

Although he published only two books in his lifetime, Walden is a literary masterpeice and one of the most significant books of the nineteenth century.