This study reports the findings of a mixed method critical study of non-native university English language teachers' perceptions about cultural values and traditions represented in North Star English course book (advanced level), published by Pearson. The sample consisted of 35 male teachers who had experienced teaching the course book under investigation used at an English language institute in one of a Saudi Arabian university. In this study, a combined dataset questionnaire was used to collect data. Findings revealed that the participants had a negative perception towards the cultural models and traditions represented in the course book. More specifically, they were not adequately designed to suit the Saudi cultural background, local cultural norms and traditions. Moreover, the participants indicated that the course book failed to embody the international cultures of English speakers. The study recommends adopting new cultural policies which consider incorporating both the local as well as international cultures and traditions of speakers of English.