This handbook, published by the World Health Organization, serves as a comprehensive resource for trainers involved in primary ear and hearing care. It addresses the global challenge of hearing loss, which affects over 6% of the population, particularly in low- and middle-income countries. The handbook guides the structuring of training courses, providing learning objectives, teaching tips, and assessment methods. It emphasizes task-shifting and task-sharing by training primary care workers to manage ear and hearing conditions, thereby extending care to underserved communities. The handbook includes evidence-based approaches, such as the Objective Structured Clinical Examination (OSCE), to evaluate and ensure competence in trainees. It aims to improve access to essential ear and hearing care through community health workers, enhancing awareness and early intervention in local populations.