Abstrak
This research aims to develop learning media for tenth-grade students at SMAN I Tarakan for English language learning. This research used a Research and Development (R and D) design using the Dick and Carey Model, which consists of nine stages: (1) identifying instructional objectives, (2) conducting instructional analysis, (3) writing performance objectives, (4) developing assessment instruments, (5) developing instructional strategies, (6) selection and development of teaching materials, (7) validation of experts and practitioners, (8) implementation, (9) revision. The instruments used in this study consisted of interview sheets, material and language validation questionnaires, practitioner validation questionnaires, graphic (media) validation questionnaires, and student response questionnaires. The research results showed that the validation of Authentic Reading Book by material and language, experts was 95%, graphic validators were 94.37% and 95% from practitioners. The results of the student response questionnaire, which was divided into three phases, showed that the individual formative evaluation trial reached 79% (suitable qualification), the small group trial reached 77.39%% (suitable qualification), and the large-scale formative evaluation trial was 77 20%% (suitable qualification). The development of the Authentic Reading Book was suitable for use in learning English for grade X students at SMAN 1 Tarakan.