Abstrak
This research analyzed the English textbook "Bright An English" used for eighth grade students at MTsN 6 Agam. The research method employed was descriptive qualitative content analysis using checklist documentation and interviews with teachers as research instruments. The research findings showed that this textbook had a high category in terms of conformity with BSNP (National Education Standards Agency) standards. However, there were some areas that needed to be improved, such as the inclusion of diverse learning activities and explicit step-by-step instructions. The analysis concluded that the suitability of the "Bright An English" English textbook in teaching English for grade eight students at MTsN 6 Agam was in the "high" category, with an average suitability score of 95.23%. This indicated that the textbook had demonstrated a "high" level of suitability in supporting the teaching and learning process for grade eight students at MTsN 6 Agam. This study provided valuable insights into the adequacy of textbooks in achieving national education standards and offered recommendations for further improvements in the development of learning materials and methods