This French-language work presents coaching as a practical discipline for improving performance, communication, and personal or professional development. Written by Jean-Marc Ortega, it is positioned as a guide for readers interested in understanding coaching methods, the role of the coach, and the relationship between coach and client. The book appears to focus on applied techniques rather than abstract theory, offering a framework for setting goals, clarifying motivations, and supporting change through structured dialogue. Its approach is relevant to managers, trainers, educators, consultants, and individuals seeking a clearer understanding of coaching practice. Published by Guy Tredaniel in 1999, the volume contributes to the late-1990s growth of coaching literature in French-speaking contexts.