We live in a globalized world in which a person in Burkina Faso can identify with Star Wars heroes, and in which a New York trader drinks the same Starbucks coffee as his Taiwanese counterpart. How are individuals socialized in Rome, Bombay, and Tokyo? To answer this question, a unique investigation has been carried out using two scales of analysis usually tackled separately by global studies: the scale of the cosmopolitan world and its global narratives, imaginaries, iconographies; as well as the scale of everyday life and socialization to otherness. This two-fold perspective constitutes the innovative approach of this volume that endeavors to address an operationalization of the cosmopolitan perspective and reacts to current debates and new research findings. With a Foreword by Natan Sznaider. This book was first published in 2016 as Pluriel et commun. Sociologie d'un monde cosmopolite by Les Presses de Sciences Po, Paris. Other editions: the book is also published in Italian as Plurale e comune. Sociologia di un mondo cosmopolita by Morlacchi editore, Perugia, 2018; and in Brazilian as Plural e comum. Sociologia de um mundo cosmopolita by Edições Sesc, Sao Paulo, 2018.