"I was making a very simple sketch in a notebook of tree rings, and I quite quickly made a connection between tree rings and chapters in a book," Paterson says.
تقول باترسن: "كنت أصنع رسما بسيطًا لحلقات من الأشجار على دفتر وبمنتهى السرعة ربطت بين حلقات الأشجار وفصول الكتب"