This is by far the best introduction to HTML5 that I've seen. I freely admit to being something of a sceptic about the spec — and I still seriously question par

This is by far the best introduction to HTML5 that I've seen. I freely admit to being something of a sceptic about the spec — and I still seriously question parts of it — but this introduction highlights the most important aspect; it adds more semantics to a HTML document. I’m a big fan of that.