This study determined the vocabulary skills of Grade 7 learners to develop and evaluate an interactive e-book as a supplemental material. It utilized the Sample and Measurement (SAM) method. The participants of the study were 38 Grade 7 learners. A pre-test was conducted to determine their initial level of vocabulary skills. Based on the results, an interactive e-book was developed. Following the intervention, a post-test was administered. The study was conducted at Saint Joseph Academy in Poblacion, Malinao, Aklan, from August 2024 to November 2024. The results revealed that the Grade 7 learners, as a group, displayed a moderate level of vocabulary skills. However, both their pre-test and post-test performances reflected a high level of vocabulary skills. Moreover, the interactive e-book developed in the study proved to be a valuable supplementary material for enhancing vocabulary skills. The null hypothesis was rejected, confirming the statistical significance of the improvement between the pre-test and post-test performances of the learners. The acceptability of the interactive e-book was rated as "highly acceptable" in terms of content quality, instructional quality, and technical quality. It is recommended that Grade 7 learners actively use the interactive e-book to enhance their vocabulary skills and overall learning experience. Additionally, English teachers are encouraged to integrate the interactive e-book into their instruction, and school administrators are advised to promote the integration of technology in the classroom.