The notion of adab is at the very heart of the Islamicate cultures. Born in the crucible of the Arabic and Persian civilisations of the Late Antiquity period, nourished by Greek, Syriac and Indian influences, this polysemic notion could cover a variegated range of meanings, ranging from good behaviour, good manners, etiquette, proper knowledge of the rules, to belles-lettres, and finally, literature. This volume addresses the notion of adab through four perspectives, which correspond to the four parts into which it is divided: "Origins"; "Transmissions"; "Metamorphosis" of the "Origins" and finally "Origins" through the lens of modernity.