The basic purpose of this research is to investigate whether the content of Look Ahead is fulfill the indicators of good textbook suggested by Alan Cunningsworth, such as: aims and approaches, design and organization, language content, skills, topic, and methodology.
The design of this study is qualitative research employing descriptive research. The data were analyzed qualitatively. It was conducted from March 2013 to May 2014. The population of this research is the textbook for senior high school students’ grade X that is Look Ahead, written by Th. M. Sudarwati, published by Erlangga. In collecting the data, the writer used a documentary analysis as the technique. She took all units in the textbook analyzed as the sample of the research.
The result of this research shows that Look Ahead fulfills some criteria of a good textbook suggested by Alan Cunningsworth, as it indicates 30 of 45 Alan Cunningsworth checklists. The conclusion of this research implies that the textbook is presented in an organized, logical manner, and is appropriate for the age, grade of the students. Thus, it is recommended to teachers and students of senior high schools to use the textbook.