I thought this book was average. Many of the stories were outdated, and I didn't get enough scientific explanations for the unknown from this book. Most of the book consisted of old anectodes about strange occurences, but didn't give concrete proof or solid explanations that these mysterious occurences actually were the results of ESP or mind power. Basically, I found a lot of it to be conjecture. Although I do believe, in some respects, in parapschology, including ESP, psychokinesis, remote viewing, and precognition, I wished this book would have explained some of the more famous experiments that have taken place in these fields. The book explained some of the experiments, but not many of them turned out to give concrete, indisputable evidence that the results were achieved through mind power over chance or faulty testing conditions. Basically, the book got redudant, and I wished there would have been more on the controlled experiments instead of just case files and stories that were unexplained throughout history.