Komunikasi Interpersonal Pustakawan Dan Pemustaka Di Perpustakaan Universitas Islam Negeri Sumatera Utara Medan

The research objective is to analyze librarian and library interpersonal communication in UINSU Medan. This study uses the effectiveness theory of interpersonal communication from Devito (1986). This research method uses qualitative research methods with a phenomenological study approach. Research informants were 5 (five) librarians who worked in the UINSU library and 9 (nine) library users and through purposive sampling. Data collection techniques through observation, interviews, and documentation. Data analysis techniques use thematic analysis. Data triangulation was carried out to 9 (nine) students of UINSU Medan. The results showed that UINSU Medan library librarians had effective interpersonal communication found in several components, namely: 1) Verbal and Nonverbal Communication, 2) Openness, 3) Receiving Input, 4) Hospitality, 5) Empathy, 6) Support , 7) Familiarity, 8) Positive Thinking, 9) Respect. Barriers that occur in misperceptions, lack of sensitivity, lack of information instructions in the library.