Author James Sagner has been a consultant to nearly 250 global corporations and nonprofits, and was a banker with First National Bank of Chicago (now JPMorgan Chase). For over fifteen years, he was a professor, teaching graduate business at colleges in New York and Connecticut, and executive education at the University of North Carolina. Sagner earned his MBA from the Wharton School of the University of Pennsylvania and his PhD from American University, along with two professional certifications. An accomplished author of eleven previous books and sixty journal articles, his text, Cashflow Reengineering, was named among the top 100 best finance books ever written. Sagner currently resides near New York City.