jim_clarkJim is coauthor of four books including A Photographic Guide to the Evaluation of Hazard Trees in Urban Areas (2nd Ed., 1992, International Society of Arboriculture), and Arboriculture:  Integrated Management of Landscape Trees, Shrubs and Vines (4th Ed., 2004, Prentice Hall). He has presented lectures in arboriculture and urban forestry throughout the U.S., Canada, Brazil, Europe and Australia. Certified Arborist (WE-0846) and Registered Consulting Arborist (#357)

IASHK 2009: Tree Assessment & Preservation