"The Prophylaxis of Morphological and Postural Alterations" is a comprehensive guide that focuses on the importance of proper physical education. It particularly emphasizes the development of the skeleton and the strengthening of the muscular system to prevent postural anomalies in children. The author, Alirio José Arrioja, examines a group of children in the first stage of primary education in this work to demonstrate how early interventions in the educational field can help avoid morpho-functional anomalies. The guide offers valuable insights and strategies that are relevant for both education professionals and parents to promote children's physical health and well-being. The content is practical and tailored to the needs of children in the early stages of development, making this guide an essential tool for the prevention of postural disorders.