The author presents some useful information, but the writing style and errors make it difficult to access. The writing style includes choosing first person plural for his voice, as in, Queen Victoria's "We are not amused." It also includes impossibly twisted sentences with the verb and object seperated by some of the world's longest and least meaningful digressions. These elements force the reader to dig out the information undeniably contained in the book.
One of my favorite examples is the following short paragraph. The author is discussing a chart plotting the Nikkei and Dow Jones indices. He points out that they've crossed several times in the last 50 or 60 years. He then says (pg 299),
"They will meet again, we're sure. We just don't know when and where. Can we really be sure? Will they cross again? We actually do not know that either with any degree of confidence."
What am i supposed to make of that?
Errors include a multitude of grammatical errors, mispellings, words left out, sentence fragments. Did this book have an editor? This was published by Wiley. What the heck did they add?
Unfortunately, the errors also include serious technical misunderstandings. For example the author asserts that for returns to be serially uncorrelated, they must be normally distributed. That's trivially untrue.
I found the book useful, but the reader needs to be careful using it.