Please allow me to tell you something before you read this book．When my 1 ,Sam, was born , my heart was filled with joy．I had been sitting in a wheelchair for 20 years before then ,and I have been 2 ill many times．So I wondered if I would have the 3 to tell Sam what I had 4 ．
For years I have been hosting a program on the 5 and writing articles for a magazine．Being 6 to move freely , I have learned to sit still and keep my heart 7 , exchanging thoughts with thousands of listeners and 8 ．So when Sam was born．I 9 to tell him about school and fridship , romance and work , love and everything else．That how I started to write these 10 , I hope that Sam would 11 them sooner or later．
However , that expectation 12 when Sam showed aigns of autism(自闭症)at the age of two, He had actually stopped talking before the discovery of the signs．He 13 to communicate with others , even the family members．That was 14 for me but didn't stop me writing on．I realized that I even 15 now to tell him．I wanted him to 16 what it means to be “diffenet” from others, and learn how to fight against the misfortune he'll 17 as I myself．his grandfather ,did ,I just 18 if I could write all that I wanted to say in the rest of my life．
Now． 19 the book has been pubhshed．I have been given the chance , Every chapter in the book is a letter to Sam：some about my life．and all about what it means to be a 20 ．
salesman said.