A note on dates: Where possible, I have indicated the date of a work’s initial presentation (usually the first print publication date but occasionally the first lecture date). Where the work first appeared in one form and then subsequently appeared in a compilation, I include the original date after the title of text rather than after the title of the book in which it appeared. This approach seeks to balance the practical challenge posed by the fact that key compilations and their translation, such as Lacan’s Écrits or Bateson’s Ecology of Mind, have their own historical significance. The pre sent approach aims at highlighting when an initial text or statement entered into public discourse, while also acknowledging the volumes and translations that also entered into these works’ developing historical significance.