Anne Franck wrote and re-wrote her Diary, the re-writing having been interrupted by deportation and death in a Nazi camp. Starting from both these versions, the author gives an account of the evolution with Anne of the discourse about her own self, right at the puberty stage and of the part played by the Diary in the experience of one’s own self being in full development. Here the diary is thought in terms of a container, i.e. as the seat of a task of both memory and renounciation but also as the evidence of an incarnated testimony.