Abstract: Florence Naugrette, a professor at the Sorbonne, member of the Institut Universitaire de France, lets the reader into a spectator’s and researcher’s private workshop, crammed with forty years’ worth of loving observation of the stage. Should one take notes during a performance? What importance should we attach to our impressions? What is the interplay between perception, description, interpretation? What readings does she recommend? And finally: what does a beautiful memory look like?