The Pirate Hunter is exhaustively researched and chock full of details about the trials and tribulations of Captain William Kidd. Unfortunately, I found Zacks' writing to be both too tedious as well as too loose at the same time. He fills nearly every page with every minute detail (and frequently about mostly mundane incidents) while all too often slipping into a writing style that is too colloquial for a book that otherwise tries to present itself as serious history. Don't get me wrong - it is serious attempt at history. It's just that it reads rather schizophrenic, like Zacks is doing his best impression of an academic historian but can't quite pull it off. It's the literary version of a film student's attempt at documentary, where everything is kept in the final cut because he can't bring himself to edit something that he spent time researching.
Overall, I found the book a bit of a slog. The Pirate Hunter runs just over 400 pages long, and could easily be edited down to 250 or so for a much better, more compelling, faster paced book. As it is, it certainly makes you vicariously feel what an ordeal sea travel in the late-17th century must have been.