This exploratory study examines book circulation patterns among undergraduate university students at an English-language University in Istanbul, Turkey, in order to investigate the relationship between students’ academic achievement and discipline of study, gender and book borrowing habits. Overall, this study supports the important role of the academic library’s print book collection in supporting and contributing to student success and demonstrates a significant positive correlation between undergraduate students’ level of academic achievement and the number of books they borrowed from the university library. This positive correlation was found for students in all faculties and fields of study, but was strongest for students studying qualitative disciplines and was particularly strong for students enrolled in English as a foreign language programmes.