This is the sixth book in the Sustainable Building Essentials SeriesRob Roy is the Director and co-founder of Earthwood Building School, since 1981Has taught cordwood masonry all over the world since 1979, including Australia, New Zealand, Chile and Hawaii and North AmericaThis is Rob's sixth book with New Society PublishersHis previous works have sold a combined total of over 85,000 copiesThis is the essential manual of cordwood masonry construction, a method for building large and small houses, saunas, and other outbuildings.Cordwood masonry is the building of walls out of short logs - called "log-ends" -- mortared up transversely in the wall, much as firewood is stacked. This is a step-by-step guide to building with cordwood including materials and tool requirements, wood selection, how to make the mortar, including cob and lime plaster and how to build, insulate, and finish walls,Cordwood walls are easy and fun to build, economical (particularly if using one's own trees for log-ends), energy-efficient, esthetically pleasing, and environmentally sound.Special design features, and how to make them, are covered, including designs with log-ends, bottle-ends, or a combination.