Chris Magwood and Peter Mack are professional straw bale builders and consultants who have constructed over 40 straw bale buildings, consulting on many more. They have taught workshops and seminars across the continent and overseas, and are authors of one of the first straw bale how-to books, Straw Bale Building (New Society, Publishers, 2000) which has sold 20,000 copies. Chris Magwood has been editor of The Last Straw Journal, an international quarterly devoted to straw-bale building, since 2001. He is also the coauthor of Straw Bale Details.