Whoa, Robert. I have read Dr. Edwards' book - and I believe my criticisms are well founded. In fact, many of the deficiencies I see in his book have been also touted by others, such as on the Amazon and Goodreads book sites, where I have posted my critiques. Further, I have called his book a masterpiece here on these pages for its stellar organization and distillation of the 302s. But I have also called it uneven, and noted that it gave me a near-migraine while reading it. It's a great reference book for us researchers, but it is one hellava tough read for the average Joe.
Perhaps I should have encouraged Snowmman and myself to RE-read Doc Edwards' book to discuss Takhli. But that's too much work for too little gain in my view
As for claiming I am a journalist, I do so since I am published in multiple places and I get paid for my writing. Why do you ask?
Bruce, I am not familiar with the Goodreads book site that you mention but I am familiar with the Amazon site.
Amazon lists six reviews of Dr. Edwards' book. Five of those reviews give it five stars and the sixth review gives it four stars. All of those reviews were made by verified purchasers in the USA and I don't recognize any of the names.
If you have attempted to post a review of Dr. Edwards' book at Amazon, it didn't make it past Amazon's own "quality control" reviewers or else you used a new screen name. 
I’ve read the book and now I have read 7 books on DB Cooper and am presently getting started on my 8 th which is Marty’s “ Finding D B Cooper “. I find them all to be great reads and they all add something different. I give Robert Edwards book a 5 Star ! He takes the topic from a more Mathematical angle giving us a perspective of likelihood of something happening. Being a Math Geek, I found it to be a very accurate perspective of what might have been most likely to have happened. Do I buy into everything presented ? No but Mr. Edwards didn’t expect us to. He has no suspects and neither do I.
At Amazon I gave Doc Edwards' book 3 stars. I took one star off because it is such a difficult read, and another star because I thought his analysis and final conclusions were inadequate and, frankly, lame. He puts DBC in the river - kind of - and that type of conclusion should have a ton of evidence to back it up, and I didn't see it. One out of six FAA officials monitoring 305 is insufficient, in my view, on which to hang an entire theory of the case. Further, there is little to no inclusion from personages. No interviews that I recall, nor analysis of the commentaries from the principals.
Yes, the production values are outstanding. All those graphs and pictures. Amazing.
