Adam Weismann and Katy Bryce work with lime and clay on a daily basis through their company, Cob in Cornwall. They learned these skills through restoring ancient vernacular buildings in Cornwall, and then began to apply the traditional techniques and materials to contemporary eco builds. They have a passionate belief in the power of these natural materials to benefit the health and well-being of people, buildings, and the environment. Adam and Katy live in Manaccan, Cornwall. Their books include Building With Cob: A Step-by-Step Guide and Using Natural Finishes: A Step-by-Step Guide.