 For example, he advocated truth to material, structure, and function, as did the Arts and Crafts artists.Pugin articulated the tendency of social critics to compare the faults of modern society with the Middle Ages, such as the sprawling growth of cities and the treatment of the poor—a tendency that became routine with Ruskin, Morris, and the Arts and Crafts movement.His book "Contrasts" (1836) drew examples of bad modern buildings and town planning in contrast with good medieval examples, and his biographer Rosemary Hill notes that he "reached conclusions, almost in passing, about the importance of craftsmanship and tradition in architecture that it would take the rest of the century and the combined efforts of Ruskin and Morris to work out in detail."