sentences:  The model of the ISP introduced the holistic experience of information seeking from the individual’s perspective, stressed the important role of affect in information seeking and proposed an uncertainty principle as a conceptual framework for library and information service.Kuhlthau’s work is among the most highly cited of library and information science faculty and one of the conceptualizations most often used by information science researchers.The ISP model represents a watershed in the development of new strategies for the delivery of K-16 library and information skills.