"Martin Eden" is a 1909 novel by American author Jack London about a young proletarian autodidact struggling to become a writer. It was  published in book form by Macmillan in September 1909. Eden represents writers' frustration with publishers by speculating that when he mails off a manuscript, a "cunning arrangement of cogs" immediately puts it in a new envelope and returns it automatically with a rejection slip. Eden differs from London in that Eden rejects socialism, attacking it as "slave morality" and relies on a Nietzschean individualism. Nevertheless, in a note to Upton Sinclair, London wrote, "One of my motifs, in this book, was an attack on individualism (in the person of the hero). I must have bungled, for not a single reviewer has discovered it."