There are a lot of great books out there already to introduce Perl to newbies, including the authoritative O'Reilly series.
One interesting spin could be a very low-level/lengthy introduction. Such as a dialogue on the difference between chop and chomp - the Camel book just hits the surface on that one.
And then there's version 6 coming out down the road, which I could also see explaining to newbies (this would be one of the advantages of the "syntactical sugar").
If it does come to be that I write a book, I have been thinking a lot about undertaking such a project. I don't know why - perhaps it's a genetic trait of a technical geek to leave something of him/herself behind for others to read and learn from. I've heard the horror stories - the massive amounts of time put into it and very little payback. But it's something that has fascinated me for a while.