Mentoring pupils or students very often proves to be an arduous task even for the most initiated. This guide is intended for parents, teachers and trainers who want to see the academic performance of the learners in their care improve. Indeed, enrolling a child in school or even teaching him/her new notions is not enough for him/her to learn; it is also necessary that adequate follow-up accompanies the learner in the learning process in order to avoid problems of boredom, discouragement, indiscipline and especially dropping out (dropping out) of school. You will find useful information on the functioning of the brain and the memorization process, explanations on the origin of learning difficulties and methods of resilience. Bibliographical references are found at the end of the document. If reforms are desirable on the institutional level of the organisation of studies, the involvement of the coach/trainer, whatever the system in place, is essential. The latter has more power than he sometimes believes to help improve the learner's academic performance.