I bought my copy of David's book from a store before I discovered Amazon.Com. As the clerk bagged the book for me she jokingly remarked "Well this looks like relaxing read for the weekend". This book is more fun to read then the title let's on. However, I don't think It was compiled as well as some other works like in the author's lost cities series. David's chapter on Einstein and unified field was good but the rest of the book looked a little thrown together. Even compulations should be well ordered. And, I am not saying this because my copy was bound with some extra duplicate pages either.I appreciate the author's open mindedness on many issues. If this work were someones first read of this author they might be tempted to underestimate the rest of his work. I am saying this as fan.