Abstract Name : Muhammad Qadri Student Number : 0706102050024 Study Program : English Education Title : A Content Analysis of English on Sky Book for Second Grade Junior High School. This research is mainly intended to find out whether the English textbook used for the second year Junior High School “English on Sky 2 book” develops the skills suggested by the school-based curriculum. In line with the objectives of the research, the writer used a descriptive method. In collecting the data, he used document as data source. The data were analyzed by these steps: (1) Finding out the kinds of skills available on the textbook, (2) Classifying them, (3) Analyzing them, (4) Counting and adding them, (5) Giving percentage from the total number, (6) Judging whether the data are appropriate with indicators in school-based curriculum or not, and (7) Drawing conclusion and proposing suggestions. The result of the analysis shows that the percentage of the appropriateness of the skills developed in the textbook is 58%. It means that the textbook is fairly compatible with the School-based Curriculum in developing the skills but the textbook should revise and add indicators as suggested by school-based curriculum (KTSP) with the purpose to achieve content standard of the KTSP curriculum.