The illustrations are fantastic. I think the physical copy of this book is going to be wonderful. On an ereader, the words are kind of small and I had to squint to read, but maybe it won't be like that for all ereaders.
I think the book does a good job of validating a child's feelings of being sad or scared to part from their mother. A lot of people don't do that and they just shoo the kids away and say something like "no reason to cry, this will be fun!" which I believe invalidates the child's real feelings. This book does a good job of validating the feelings that some children may have of going back to school while also showing them all of the fun they will have while they are at school.
Disclaimer: I received a free ebook download from Net Galley in exchange for giving a review for this book.