Instruct: Classify the given Amazon review into positive or negative sentiment.
Query: Not What I Expected

If you are expecting several accounts from children about what they saw while having a near death experience, this book is not for you. While it does offer a few accounts (very few), most of them are very brief and scattered among pages and pages of how the studies came to be, supposition of what does or does not cause NDEs, and theories about them. How it became a best seller, I can't figure out, unless it was the topic and the same hope that it would be filled with children's detailed NDEs.