As much as we learn about the production (a full scale Titanic was constructed, etc.) we're left with the impression that putting this film together was a massive undertaking but, overall, fairly routine. Absolutely no mention of the cost overruns, Paramount bailing Fox out at the last minute (and reaping all the rewards), ILM, Banned from the Ranch and other effects houses completing key FX work or James Cameron's fierce temper and its effect on the cast and crew around him.
But, after all, this book is titled "James Cameron's Titanic" so readers really shouldn't expect more than a valentine to the director for his efforts on this film. You'll learn a thing or two but in the end you'll discover that it's a little empty and a bit of a disappointment.