When my daughter Sophie was diagnosed with Down syndrome at four days old, the last thing I wanted to do was read a book about it. I couldn’t look at so much as a pamphlet. It was an odd response for a journalist — but for a long time I couldn’t bear to do much more than hold my baby and watch bad TV and cry and, eventually, let her teach me herself about Down syndrome. That said, there was a lot more to learn, so it’s a good thing my husband is also a journalist, and had a different response. He…