Are iBooks Books Complete?
This is disturbing; are publishers really not performing quality checks for ebooks? In this case, nearly 1/6 of the book is missing; the length of the file should have been checked.
It’s worth noting that this particular book has been the object of several “reviews” in the iBookstore mentioning the glitch (I bought the book before these reviews were posted), some of which mention having contacted Apple. That Apple is still selling the book is at a minimum disturbing.