Charles and Nancy Cook are enjoying their fourth decade of marriage. The Spies at Carpenters' Hall represents a different type of collaboration by the couple. With extensive experience in elementary education, Nancy has helped Charlie write an important story for children about a critical moment in American history, and how each child should grow up knowing that the efforts of each and every person can make a difference. Charles is a member of the Carpenters' Company that maintains Carpenters' Hall. Due to its historical significance, in 1851 Carpenters' Hall was the first privately held building in America opened to the public, and it remains so today free of charge. Spanning a career in construction of over fifty years, Charles now teaches Construction Management at Drexel University. In 2019 he received the Educator of the Year Award by the Associated General Contractors of America for his ability to bring engaging lessons to both his Face to Face and On-line students. Charles and Nancy continue to enjoy time spent with their friends and family living in suburban Philadelphia.