Devenir contrôleur aérien is a concise guide that demystifies the path to becoming a flight‑level air traffic controller. Written in French, the book outlines the educational prerequisites, the rigorous training regimen, and the psychological attributes required for the role. It offers practical advice on navigating the competitive selection process, preparing for aptitude tests, and mastering the technical knowledge of air traffic control systems. The author, Daniel Casanova, draws on personal experience and industry insights to provide a realistic portrait of the profession, including the demands of shift work, the importance of situational awareness, and the rewards of ensuring safe and efficient air travel. The text serves as a useful primer for aspiring controllers and a refresher for those already in the field, emphasizing both the technical and human aspects that define this critical aviation career.