Despite the fact that most school leaders take their responsibililities seriouls when it comes to recruiting effective teachers,implementing programs,offering training curricula, acquiring infrastructure, and learning processes,it is observed that the management of materil,financial,and human resources is not as optiomal as one would like. This is probably justified by the fact that, in most cases, there is no synergy between the different actions taken ; a transparency in management and an adapted leaderschip style are lacking. This could also be due to a lack of training for leaders who are generally called to selfètrain for the fulfillment of their mission.That is why this management guide offers a systemetic and practical approach to managing processes and/or activities, peaple,resources, and the infrastructure of a secondary school with authenticity and transparency.