This textbook focuses on underground ventilation, addressing both theoretical and practical aspects. Readers will develop a deeper understanding of mine ventilation and adjacent areas of research. The content is clearly structured, moving through chapters in a pedagogical way. It begins by presenting an introduction to fluid mechanics, before discussing the environmental conditions in mines, underground fire management, and international legislation concerning mines. Particular attention is paid to development ends ventilation, an area that is underrepresented in scientific research. Each chapter includes a concise theoretical summary, followed by several worked-out examples, problems and questions to develop students’ skills. This textbook will be useful for undergraduate and master’s degree students around the world. In addition, the large number of practical cases included make it particularly well suited to preparing for professional engineer examinations and as a guide for practising engineers.