A Textbook has a big role to make the process of learning and teaching running well.  The good textbook will influence on the students’ ability toward the lesson in the classroom. Before getting an explanation from the teachers, the students will learn the material first in their homes. It will let them comprehend the material before being explained by their teachers. It will make the learners easily understanding the lesson which is explained by the teachers in the classroom. By doing so, it will not be complicated for the students in mastering each lesson. The purpose of this research is to know whether the textbook integrates all learning skills and to find out whether the textbook gives assessment or self-reflection to the students about each chapter. In order to do this research, the checklist and documentation method is used to investigate the content of the textbook. The result will be shown by using the table and explained clearly to avoid misunderstanding against the readers. Briefly, a good textbook used by teachers and students in the classroom plays a crucial role in the process of learning and teaching.

Textbook gives a big contribution to the students’ improvement in teaching process. One of the contents on the English textbook is reading. A good content of reading has several criteria. The criteria can be a clear explanation, easily to be understood, and giving new information to the students. This research aims to find out whether the content of textbook especially in reading materials fulfills criteria of good content. In conducting this research, interview and content analysis method were used to collect the data about the reading content on the textbook. After conducting the research, there were several findings about the reading content of the textbook such as the reading materials were implemented by using any various forms and perspective of English teachers of the school about the textbook. Briefly, content of textbook especially reading material contributes bigly to the students in order to enhance their skill in reading any kinds of text and other forms of reading material.