This study aims to investigate the viability of HOTS-oriented theme textbooks based on indigenous knowledge to enhance the efficacy of Kindergarten education in Jepara Regency. Using the Research and Development (R and D) technique, themed textbooks based on HOTS-oriented local knowledge are developed. In this study, data was collected by observation, interviews, questionnaires, and tests. The approach for data analysis included descriptive analysis and a two-group difference test (independent sample t-test). The outcomes demonstrated that HOTS-oriented thematic textbooks based on local knowledge were deemed viable and usable. This is evident from the expert validation, which indicates that instructors and students have provided positive feedback.