Reading comprehension is a crucial skill in English language learning, especially for senior high school students who are expected to engage with increasingly complex texts. However, in many EFL (English as a Foreign Language) contexts, including at Insan Qur’ani Senior High School, students often face challenges in reading English fluently and effectively. These difficulties stem from limited exposure to English reading materials, lack of motivation, unfamiliar vocabulary, and rigid classroom reading practices that do not foster reading enjoyment. To address these issues, this study explores the use of the extensive reading method as an alternative approach to improve students’ reading comprehension skills. The research employed a quasi-experimental design involving 30 eleventh-grade students who participated in a two-week extensive reading program. Students were encouraged to select and read English short stories that matched their proficiency levels and personal interests. Data were collected through pre-tests and post-tests to measure students’ reading improvement, along with questionnaires to gather insights into their motivation, perceived skill development, enjoyment, and challenges during the program. The findings revealed that the majority of students showed significant improvement in their reading comprehension scores. Several students increased their scores by 30 to 50 points, demonstrating better understanding of main ideas, vocabulary acquisition, and inferential thinking. Additionally, 80% of participants reported increased interest in reading English, and 76% expressed a desire to continue reading independently after the program. Despite some challenges, such as vocabulary difficulties and time constraints the program was generally well received. In conclusion, extensive reading proved to be an effective and enjoyable method to enhance reading comprehension in an EFL classroom. This study recommends integrating extensive reading into the English curriculum and providing continuous support from teachers to help students develop sustained reading habits.