This is the tale of William Smith, the first guy to create a geologic map. He identified the strata that makes up what comprises the ground for quite a ways down and figured out that it was standard. The story is an interesting one, about a poor bastard beset by the rich types who stole his work and denied him the credit he so deserved, to the point where the guy actually was consigned to debtor’s prison. His social life was even less successful. Late in life he married a much younger woman of fragile psychological stability. She was an added burden. Her maladies included nymphomania. This is not a book for the average reader. Perhaps a geeky orientation might be desirable to truly enjoy this book. And I found that it sagged towards the end. I would recommend it, but not to just anyone.