Rosanne L HartmanRosanne L. Hartman, Ph.D. is an emeritus professor in the field of communication. Cal's New Sister, Building Sibling Connections is her first children's book and is based on experiences with her grandchildren. Finding joy in being a grandmother led hr to write about how her grandchildren have built a relationship of love and joy. Rosanne lives outside of Buffalo, NY and enjoys spending time with her family. In her free time, she is an amateur potter, Read More Read Less