I was happy to see she mentioned some other favorites of mine: 'The Great Divorce' by CS Lewis and 'Till We Have Faces' also by CS Lewis and Pilgrims Progress by Bunyan.
I realize she did not intend her lists to be exhaustive as I'm sure she even thought of more once the book had gone to print. Sarah has prioritized more recognized literature as according to the world's standards, (including Harry Potter) here in this book - with the addition of some Christian books throughout.
Overall, it's okay. If you read her recommendations - do so with caution. For Christians, I wouldn't recommend some of the books she has on her list to read.