This chapter offers final reflections on structural optimization, synthesizing the main concepts and applications discussed throughout the book. It highlights the evolution from basic mathematical formulations to advanced computational and sustainability-oriented approaches. The discussion emphasizes the dual role of optimization as both a scientific discipline and a practical design tool, underlining its growing relevance in engineering education and professional practice. Perspectives for future developments include the integration of artificial intelligence, digital twins, and advanced simulation techniques, which are expected to enhance design automation and decision-making. The chapter also stresses the importance of balancing innovation with practical applicability, ensuring that optimization methods remain accessible to engineers in real projects. By concluding with a forward-looking view, the chapter reinforces the value of optimization as a cornerstone of modern structural engineering, guiding both academic research and applied design.