I second this, emphatically! Between all the books and talks I've been through, this stands out for how much it packs in and how approachability it does so. I c

I second this, emphatically! Between all the books and talks I've been through, this stands out for how much it packs in and how approachability it does so. I can't really give a perspective from a beginners view, but for a programmer with existing experience in other languages, think this is a great piece to read.