Commenter eriks says Heads in the Sand: "I got the book yesterday and the Preface is the best summary of the Friedman Unit that I've seen. I'll read more when classes finish." Woo! Praise is always welcome -- send me an email -- but I'll also take on your criticisms and disagreements if you're inclined to try to get a response.
The bad thing about bloggers writing books is that we torment you with nagging about the need to buy our book. But the good thing is that if you do buy the book, you're also buying in to a vast interactive new media experience.
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