For a 400-page book, this book is most certainly worth it and I could not put it down. "The Cycle of Cosmic Catastrophes" is one of the most serious works that I have ever read, and it was written by scientists who proposed that we are going through "cycles" of cosmic events as it seemed to be related to the one event that happened over 12,000 years ago in North America lands. This is no speculation book, even though I brought it from "New Age/Speculation" section at my bookstore. I found this book to be quite scholarly and objective read with seriously hard evidences.
The one thing from this book that really interests me is the Carolina Bays. I lived around those areas for a long time, but never once have I noticed those bays until I read about it in this book. These shallow craters, as the authors pointed out, were impacts during the extinction event, which they gave evidences of them being craters, such as extraterrestrial materials. Very interesting!
This book is full of evidences and certainly opened my eyes to the fact that Earth is not, never was, safe from cosmic objects. This book is clear written and easy to read. I would highly recommend it.