Among the co-authors is
Tom Christiansen, another important
Perl deity.
Most of the material in the book also appears in the online documentation (as accessed by perldoc), leading to periodic flamewars on comp.lang.perl.misc and comp.lang.perl.moderated as to whether the book should be bought. It should, and anybody who says otherwise is an unprintable unnodeable son of an unlinkable.
On the cover there is a picture of a camel.