I have the second edition of the Camel book on my shelf ("Covers Perl 5"), and I haven't used it for ... I don't even know for how long.

Of course, that's partly due to the nature of that book: These days I don't use books for reference documentation which is available online, and the Camel book is more or less a reference documentation. But if someone is new to Perl, I'd still recommend them to read the Preface and the first chapter of the Camel book, for which there's no equivalent in the man pages. I still love the style and humour of these chapters, which got me hooked up to Perl when I read them for the first time (in another century).