Book Stores in Chiang Mai: A Cautionary Tale

I was at Gecko book store and Backstreet book store last week. I've been many times and have never notice either store to stock copied books. But this trip they both had copied books on the shelf. I'm not against copied books but I am against paying full price for them.

backstreet book store chiang mai thailand
Backstreet Books in Chiang Mai

gecko book store chiang mai thailand
Gecko Books in Chiang Mai

Copy shops in Thailand are very good and copied books are hard to tell from the originals. Here are a few pictures of a copy. Can you tell the original from the copy?

original and copy of book

original and copy of book