This book is very handy when trying to figure out where things happened in the bible. The overlay allows you to see those same locations from today's prospective. The only issue I have is the size. It's a booklet and has a way of getting lost.
I really like the Then and Now Bible Maps. The overlay of modern over ancient gives a great overview. For that, it is a great value. As far a being an insert, in my opinion, it is too thick to act as a insert into one's Bible. All it would do over time it to hurt the binding. That is why I say it did not meet my expectations.