Department of Military Affairs, the Illinois Secretary of State, the Illinois Capital Development Board, the Illinois Supreme Court, the US Air Force, the National Park Service, and numerous communities. He has traveled widely studying trees and their habitats and participated in educational exchanges with the national dendrology societies of Germany and Belgium, the TEMA Foundation of Turkey, the Kunming Institute of Botany in China, and arboreta throughout North America, Europe, and Latin America. Sternberg has served as an honorary director for Wild Ones: Natural Landscapes, lectures frequently for various colleges, trade and professional organizations, and other institutions, and is very active in the preservation of historic trees. His public service work includes helping the Illinois Capital City of Springfield as the tree consultant and propagator for special trees and has donated more than 700 trees for Oak Ridge Cemetery, the setting of President Abraham Lincoln's Tomb. His work there has been registered as a National Living Memorial Site by the US Forest Service. Sternberg has provided papers and photographs for American Nurseryman, Arborist News, Tree Care Industry, American Homestyle and Gardening, Wildflower, Midwest Living, Garden Gate, American Horticulturist, Oak News and Notes, Weedpatch Gazette, American Gardener, Landscape Architecture, Fine Gardening, Country Woman, Old House Journal, Organic Gardening, Great Plants, and Chicagoland Gardening. He has published scientific papers in International Oaks (the journal of the International Oak Society, for which he also has served as editor), the International Plant Propagators Society Proceedings, the New York State Museum Bulletin, and the French Bulletin de l' Association des Parcs Botaniques. He served as English version editor for Chinese Seed Plants of the Big Bend Gorge of Yalu Tsangpo in Southeast Tibet by Hang and Zhou. He performed many technical reviews for the National Arbor Day Foundation's Library of Trees series, and supplied photographs for the US Forest Service Field Guide to Native Oak Species of Eastern North America, the Belgian Guide Illustré des Chenes, and educational posters and web pages produced by the Illinois Department of Natural Resources and the Live Oak Society. He is the author (with Jim Wilson of The Victory Garden public television series) and photographer for Landscaping with Native Trees. He prepared a comprehensive, 550-page sequel to that volume titled Native Trees for North American Landscapes, released in January 2004, which won national awards from the National Arbor Day Foundation and the Council on Botanical and Horticultural Libraries. His