I am not sure what went wrong with this book. It really started out promisingly--the first couple of pages engaged my niece and nephew (and me), and I thought, "oh, this is going to be a biography of Einstein that will be accessible to the kids!" I was excited! And then.... I wasn't.
It was interesting to learn that he was a problem child, to be sure, and I think those bits will stick with my niece and nephew, but I really don't think that anything past Einstein's early childhood years is going to remain with them. The writing became less entertaining as the story progressed. It became more dense and more full of information that little kids aren't going to identify with too readily, which made the story less memorable. The book was ok, but it didn't register with the kids as much as I hoped it would.