now, first up john donvan and caren zucker's new book "in a different key". this is hardly just a medical fail. it's a very human story of doctors who studied and misunderstood conditions in patients who spent years away, hidden away at home or in institutions and the parents who were maligned for their children to uncontrollable behavior. it's the story of the darkness of the past and attempts to discover brighter future for those who have autism. the "washington post" reviewer herself, the mother of an autistic child said the book does what no other autism book has done, captures all that bewildering and -- aspects. i've wept and rage for reading it all the while thinking yes, this is my experience. brought together with dignity and affection on the page. with the "washington post" year and notables light -- and might just inspire us and help us understand our world. john donvan and caren zucker's book does just that. >> sean, thank you and welcome everybody. it's a great book. i feel bad that you've got might but back over there. it's a very moving book an