Jenkins' three titles include: The Humanure Handbook; The Slate Roof Bible; and The Balance Point. The Humanure Handbook and the Slate Roof Bible have been presented with multiple international, na...ver másJenkins' three titles include: The Humanure Handbook; The Slate Roof Bible; and The Balance Point. The Humanure Handbook and the Slate Roof Bible have been presented with multiple international, national, and regional awards, as has Jenkins himself, personally, for his work in the slate roofing trade as well as his international work in composting.ver menos