The firm originated in 1836, when the London bookseller George Routledge published an unsuccessful guidebook, The Beauties of Gilsland, with his brother-in-law W. H. (William Henry) Warne as assistant. In 1848, the pair entered the booming market for selling inexpensive imprints of works of fiction to rail travellers, in the style of the German Tauchnitz family, which became known as the "Railway Library".