More than 200 photographs in the book trace the developments that occurred during the twentieth century in Richard Dunstan's shipbuilding yards at Thorne, near Doncaster, and Hessle, near Hull. Changes of building material, from wood to steel, from sail or steam power to diesel, from riveted to wielded construction, and from exclusively local customers to worldwide orders, have been reflected in the illustrations chosen. The famous TID tugs and other craft built as part of the war effort in the early 1940s are also featured, together with members of both pre- and post-war inland waterway fleets built for work on the Humber, Thames, Seine and Burma's Irrawaddy. The company was once at the forefront of innovations in tug design and methods of propulsion, and this is reflected here, alongside pictures of the whole variety of craft that emerged from the two yards during their existence.