Needs analysis is fundamental to determine what students need to achieve through the medium of English accurately analysis. In this regard, the present study seeks to evaluate the ESP course book entitled "The ESP Course of Qur'anic Sciences and Tradition" taught at some universities in Iran. More specifically, the study aims to identify the students' perceptions of their needs and their attitudes towards the course book. To this end, a researcher-made questionnaire was used and accordingly an interview was run. Sample of this study consisted of 80 junior students majoring in Qur'anic Sciences and Tradition and 6 teachers teaching them. Results of the study revealed that the course book is appropriate for the students of the Qur'anic Sciences and Tradition course in general sense. However, the book did not get high evaluation in some issues. The findings of this study would enable the ESP instructors to pay more attention to the students' needs in designing the Qur'anic Sciences and Tradition textbook. The paper concludes with suggestions that may help improve the current English language course based on the students' attitudes and needs.