Athena Steen founded the Canelo Project, a non-profit natural building organisation with her husband Bill Steen in 1989. Later they became authors of many books the best known being:
- The Straw Bale House
(the first book on Straw bale building… the book that created the natural building revolution!)
- The Beauty of Straw Bale Homes
- Small Straw Bale, Natural homes, Project and Designs.