Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Lots of legwork, little result

I think Mr. Bell took his research notes and just make a book out of it with little editing. Most of it was "I went here and did this. I drove here, had tea, then talked to this guy..." . Lots of pounding the pavement and time spent, but it was hard to draw any sort of conclusion based on his information and as a writer, he should at the very least tried to tie all his information together and come up with a thesis. There is none of that here. Besides a couple of new minor details, I came away from this book no more enlightened about Houdini and the incident that allegedly caused his death than I was before.