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If you can't find it anywhere for cheaper (like me) buy it from here: http://www.bookdepository.com/Mock-Mockingbird-Raymond-Smullyan/9780192801425 http://www.bookdepository.com/Mock-Mockingbird-Raymond-Smull... They ship to a very large amount of places for free. My only complaint is that because it is shipping from another country it takes a while to get to you and you don't get any tracking codes from them.