I thought this was really beautiful and sad and heart-wrenching. I was very worried about Katie, and I thought she did an excellent job of portraying her problems, both from an external point of view, as well as what was going on in her head.
I really liked the illustrations. Much stronger than just trying to convey emotions through arm movements and changes in mouth size.
If I had a quibble, it's that I thought some small parts dragged just a little, but I'm reaching.
Read this book.