Book excerpt: Strange Son is the powerful tale of two mothers from opposite sides of the world who, united by their fierce determination to help their severely autistic sons, have challenged everything we thought we knew about autism. Tito Mukhopadhyay, an autistic boy from India who spends most of his time flapping his fingers in front of his eyes, has an IQ of 185. He favors the writings of Wordsworth and Ibsen. He loves philosophy, reads People, and worries about conflict in the Middle East. He also writes beautiful poetry.That Tito can communicate at all is due to his mother, Soma, who single-handedly developed a revolutionary method of teaching him in their one-room apartment in Bangalore, a "classroom" that lacked even running water. Iversen weaves the twin stories of Soma and Tito (and how Soma's methods mystified experts) together with her own story of how she and her family came to understand Dov. The result is a book suffused with uplifting human drama.