George J. Ritz was a leading expert in construction and project management with 40 years of experience in executing projects in the U.S. and abroad. He worked on a broad spectrum of construction projects, ranging from schools for the physically challenged to world-class petrochemical plants. Mr.Ritz was a registered Professional Engineer and a frequent lecturer on project management and related topics .He wrote Total Engineering Project Management.
Sidney M. Levy has 35 years of experience as a senior executive in a major general contracting firm in New England. He is the author of 30 books on construction means, methods, and operations in the United States and abroad. Mr. Levy has lectured to industry groups in the U.S., Mexico, Europe, Japan, and Korea. His book, Project Management in Construction, was awarded the British Chartered Institute of Building Silver Medal. Mr. Levy currently resides in Baltimore, Maryland where he is an independent construction consultant.