After briefly reviewing the historical views about hope, a hope model based on 3 components – goal, pathways, & agency thoughts – is presented. Accompanying measures of hope for adults & children are described, & the positive correlates of higher hope are reviewed. Further applications of hope theory are presented, including such topics as psychotherapy, trauma, pain tolerance, adherence to taking medications, health psychology, gender, suicide, developmental antecedents, aging issues, & work. (31 refs.)