Jenkins lives in the rural countryside of Pennsylvania, USA, with a couple cats, ducks, a dog and whatever friends and/or family members happen to be home at the time. His speaking schedule can be viewed at http://josephjenkins.com/speaking_engagements.htm.He began self-publishing in 1994. His three titles include: The Humanure Handbook; The Slate Roof Bible; and Balance Point. The Humanure Handbook has been recognized in the Benjamin Franklin Awards, Foreword Magazine Book of the Year Awards, Independent Publisher Awards (where it was deemed "Outstanding Book of the Year, Most Likely to Save the Planet"), and the Three Rivers Environmental Awards, and has twice been an annual category bestseller on Amazon.com. Jenkins has worked in Mongolia, Mozambique, and Haiti teaching humanure composting. He also speaks on the topic worldwide. More information can be seen at HumanureHandbook.com.The Slate Roof Bible was awarded the prestigious Gold Circle Award by the National Roofing Contractors Association, as well as the Writer's Notes Book Award, and has been recognized in the Foreword Magazine Book of the Year Awards, the Independent Publisher Awards and the Writer's Digest International Self-Published Book Awards. It has also been an annual Amazon.com #1 category bestseller. Jenkins is Executive Director of the Slate Roofing Contractors Association of North America, Inc., a non-profit trade association. He also speaks on the topic of slate roofs world-wide. More information can be seen at SlateExperts.com.Balance Point, addresses the predicted worldwide global ecological collapse scientists say will occur in 20-40 years. Please visit the author's web sites at JosephJenkins.com, SlateRoofCentral.com, SlateRoofWarehouse.com, SlateExperts.com, TraditionalRoofing.com, HumanureStore.com and HumanureHandbook.com.