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Brian Marick has begun a Ruby/programming tutorial titled A Little Ruby, a Lot of Objects.

Brian write, "It's in the style of Friedman and Felleisen's wonderful The Little Lisper (now called The Little Schemer), but on a different topic."

Welcome to my little book. In it, my goal is to teach you a way to think about computation, to show you how far you can take a simple idea: that all computation consists of sending messages to objects. Object-oriented programming is no longer unusual, but taking it to the extreme - making everything an object - is still supported by only a few programming languages.

Can I justify this book in practical terms? Will reading it make you a better programmer, even if you never use "call with current continuation" or indulge in "metaclass hackery"? I think it might, but perhaps only if you're the sort of person who would read this sort of book even if it had no practical value.

The real reason for reading this book is that the ideas in it are neat. There's an intellectual heritage here, a history of people building idea upon idea. It's an academic heritage, but not in the fussy sense. It's more a joyous heritage of tinkerers, of people buttonholing their friends and saying, "You know, if I take that and think about it like this, look what I can do!"