This paper aims to conduct a comprehensive assessment of the appropriateness and quality of Sunrise (11). The study critically examines various aspects of the coursebook, including its aims and objectives, design and organization, language content, topics, methodology, supplementary aids, and alignment with learner needs based on the perspectives of the assessors in Kurdistan. To facilitate this evaluation, the evaluative scheme proposed by Cunningsworth (1995) has been adapted as the primary instrument for this linguistic study. The use of an evaluative checklist is justified due to its effectiveness, precision, efficiency, systematic approach and convenience. The research adopts a mixed methodology to delve into the nuances of this linguistic study. Initial findings suggest that the aims and objectives of Sunrise (11) seem well-suited to the unique teaching context in Kurdistan. The design and organization of the coursebook show promising attributes, with visual appeal, logical grading and sequencing, contextualized grammar, and a range of supplementary aids. In terms of language content, Sunrise (11) displays strengths in fostering both formal and lexical competence. However, it may benefit from further attention to vocabulary aspects, such as multiple word meanings and word formation. Regarding language skills, the textbook appears to strike a potent balance, effectively covering both receptive and productive skills, and demonstrating integration across language domains. The pedagogical approach adopted, Communicative Language Teaching (CLT), seems well-suited to the language learning objectives. While the topics covered in Sunrise (11) encompass many beneficial themes, a potential area for improvement lies in the inclusion of topics related to Kurdish culture, considering the specific target audience of Kurdish learners. In conclusion, periodic updates to Sunrise (11) are recommended to align the coursebook with evolving theories of Language Learning (LL) and Second Language Acquisition (SLA). By addressing these suggestions, the coursebook's suitability and effectiveness can be further enhanced. In short, the degree of coursebook effectiveness can be approximately 86%