Excellent, really insightful companion to Moby Dick, outlining Melville's knowledge of ocean animals, and whether those "facts" still hold true based on our new scientific knowledge. King uses Moby Dick as the jumping off point to explore the various advances in maritime science and ocean biology - there is absolutely no need to have read Moby Dick before in order to enjoy this. 

This book has certainly inspired me to read Moby Dick again. It has allowed me to see deeper into references I previously missed, or just didn't know because I wasn't aware of what was the knowledge of Melville's time. Highly recommended.