This book presents high-quality papers from the International Conference on Engineering Research and Applications (ICERA 2025), held at Thai Nguyen University of Technology on December 1–2, 2025. The conference highlighted original research across a wide range of fields, including mechanical engineering, materials and mechanics of materials, mechatronics and micromechatronics, automotive engineering, electrical and electronics engineering, and information and communication technology. This book thus offers the research community authoritative insights and updates on the latest developments in these dynamic areas.