The first aim of this paper is to make a modeling framework of the interest area of a library patron by utilizing library’s loan records. In other words, to profile a person with his/her interest field. Interest area profiling is not only interest ing of itself but also useful for li brary when it chooses the books to be purchased, for professors when they give lectures, and for other people. The eventual goal of the study presented in this paper is to develop various data analysis methods that provi de with useful tips in assisting people, including library patrons, as they learn. The second aim is to develop some useful analysis tools for such pedagogical purpose, especially for analyzing the library data and lecture data. In this paper we propose a concept of virtual faculty of a member of university, which is defined based on the interest area profile of a patron (student) and a faculty. We also give a comparative study between patron students and faculties. Even though the approach and analysis met hods presented in this paper are rather in the primitive stage s of the research toward this direction, they have a high potential and are expected to be developed to be matured and be practical in the near future.