The goal of this study is to have a better understanding of Civics Class X texts in the context of the 21st Century Learning Framework. Students in the 21st century are expected to have a variety of abilities, critical thinking and problem solving, creativity and invention, communication, and cooperation are just a few of the skills you'll learn. Textbooks are instruments that help students gain new skills and information. Civics textbooks are a valuable resource for students who want to increase their civics knowledge. This study employs a Mixed Methods, as well as a concurrent triangulation strategy for research design. data was gathered through text analysis, observation, questionnaires, and study of the literature. The results showed that: 1) the suitability of the contents of the Civics Class X textbook in the 21st century learning framework was very well presented. 2) The readability of the Class X Civics textbooks is rated good. The ease, attractiveness, and understanding of the textbook are in accordance with the abilities of students.