As much as any book can, The King of Oil reveals an incredible amount of information into the world of Marc Rich. Because Marc Rich is so secretive it is hard to compare this book to any other written pieces about him.....but this book is fascinating because it touches upon the geopolitics, the emergence of the spot market for oil, commodity trading, presidential politics, business etc.
The downside of this book is that it doesn't reveal "how" Marc Rich won crucial contracts, established relationships and competed with other commodity traders. Perhaps it's too hard to reconstruct the deal-making conversations, but it would be interesting to hear the inside stories of those critical turning points in his career.
The book is an easy read and well worth it for anyone who is interested in the intersection of geopolitics and business.