Jo R. Hall, PhD, earned adult education degrees from Marshall and Ohio State Universities. She lived in Germany, where she worked as an educator; she then spent twenty-five years creating positive ...ver maisJo R. Hall, PhD, earned adult education degrees from Marshall and Ohio State Universities. She lived in Germany, where she worked as an educator; she then spent twenty-five years creating positive work environments. She currently lives near Lake Michigan in the northern Lower Peninsula.ver menos