A story never before told and a memoir to help change our understanding of the world around us, 13-year-old Naoki Higashida's astonishing, empathetic book takes us into the mind of a boy with severe autism. With an introduction by David Mitchell, author of the global phenomenon, Cloud Atlas, and translated by his wife, KA Yoshida.      Naoki Higashida was only a middle-schooler when he began to write The Reason I Jump. Autistic and with very low verbal fluency, Naoki used an