The research aims to identify the primary reason for students' library use, to explore how they characterize academic success, and to further examine the impact of library usage on student learning outcomes beyond GPA, through a mixed-methods approach. By surveying and interviewing 27 undergraduate students during 2019-2020, the findings revealed that almost every participant strongly believed that their use of library space was positively associated with their GPA, independent of how often they would use the library. While many participants defined academic success as getting a good grade, some identified academic success as developing application skills and obtaining new knowledge.