Written by Santiago Barcón, who has dedicated his professional life to becoming an ever-improving professional and training others, always sharing his experiences and knowledge with great generosity. This enjoyable and useful work is destined to become a reference book for engineers and future professionals in this field. It can be applied to all professions, regardless of the discipline in which the individual works; they will dignify them and seek to create a better world where respect for others and for oneself prevails. The 100 pieces of advice offered in the book can be grouped into the following topics: skills and values, personal and professional development, and professional practice. In addition to explaining them, it presents real-life examples that illustrate the importance of what is stated. All of these topics highlight the importance of not only having technical knowledge, years of experience, and constant updating, but also developing personal and professional skills on a daily basis. Being open to learning from others, recognizing the work of others, and correcting mistakes, among others, are essential. The author encourages readers to consistently practice what is taught in the book so that it becomes deeply rooted and becomes a natural habit.