Nelda is coauthor of five 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). She has presented lectures and training programs arboriculture, horticulture and urban forestry throughout the U.S., Canada Europe and Australia. Board Certified Master Arborist (WE-0195B) and Registered Consulting Arborist (#243)