Slashdot has a book review of A Theory of Fun for Game Design. According to the author, this book has taken a different direction than the traditional game design books. From the review, "despite a growing interest in the field, books on game design can be jargon-filled textbooks too intimidating for the average game player. Raph Koster's A Theory of Fun for Game Design takes an entertaining look at a subject that has, in some ways, been taken too seriously by other authors. The book is thoughtful as well, providing a groundwork for a discussion of games as learning tools, art, and societal shapers."