Hier auch später erschienene, unveränderte Nachdrucke. - Rücktitelseite: "First published in French as "Art et multitude"". - Editor's note: "The first seven [!] letters were published in Italian in 1990 under the title "Arte e multitudo". In 1999 and 2001 he added new letters [...] A speech given in January 2008, entitled "Metamorphoses", develops this line of thought and serves as a postscript to the present edition"
