Found in 3 comments on Hacker News
morphir · 2010-03-11 · Original thread
Save your money for Land of Lisp by Conrad Barski, coming out this month. http://www.amazon.com/Land-LISP-Learn-Program-Game/dp/159327...
jamesbritt · 2009-09-11 · Original thread
In searching for the book on Amazon I found this: http://www.amazon.com/Land-Lisp-Learn-Program-Game/dp/159327...

Sweet.

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