The 'doubling of the self' is a phenomenon that appears in entries of private diaries and consists in the division of the diarist's self into two: the self that acts and the self that observes and writes. This phenomenon can be found in Dragoumis' (sic), Seferis' (sic) and Theotokas' (sic). There are entries where the doubling of the self occurs in practice and entries where it is described, discussed or analysed. All these reveal the three Greek diarists' contradictory feelings about the doubling of the self, but also the latter's significance for the private diary.