[nagdu] guide dog book?

[Star Gazer]

Hi folks. 

One of the teachers at my daughter's school is looking for a book about
guide dogs. I'd like to recommend the one about the teenager with the guide
dog. All I can remember was that the girl's name was Kathy, and she got a
dog as a teen. I have read the book and remember really liking it. 

Unfortunately, I can't think of the name or the author. My searches on NLS
are coming up empty and I know it was and probably still is an NLS book. 

Anybody know what I'm looking for?