If you dig in, I highly recommend following along with Racket. It takes a little discipline, but don't let yourself read the "answer" column until you've taken a stab at implementations yourself. The code built up throughout the book is cumulative, by the end you'll want to have it all saved anyway.
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Awesome -- I'll definitely check it out. From the link you've provided, I can see that the writing style is up my street.
Thanks Ben!
If you dig in, I highly recommend following along with Racket. It takes a little discipline, but don't let yourself read the "answer" column until you've taken a stab at implementations yourself. The code built up throughout the book is cumulative, by the end you'll want to have it all saved anyway.