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      $39

        All about CAPTCHA's. Decoding CAPTCHA's for Fun and Profit

        All about CAPTCHA's. Decoding CAPTCHA's for Fun and Profit

        Welcome to the practical guide to decoding CAPTCHA's. Everything you need to start decoding CAPTCHA's is contained within. Although there is a heavy emphasis on decoding you can consider it a general guide to CAPTCHA's in general. Although mostly focussed on algorithmic methods of decoding CAPTCHA's this will also briefly cover paid/human services, history and anecdotes.

        With this purchase you get the 16,000 word copy copy of the book in PDF, Mobi and Epub formats and lifetime updates whenever a new version is published.


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