Please allow me some shameless advertising:
The April 2009 issue of the iX magazine, probably the most prestigious IT magazine in Germany, contains two articles on Perl 6.
The first one covers the language design as well as an overview over the various implementation efforts, the second one introduces a very short introduction to the language, and then covers subroutines, signatures and junctions in depth.
The articles are written by Aristoteles Pagaltzis and me (Moritz Lenz).
The next two issues will cover Perl 6's object system, and the power of Perl 6 regexes (that one is going to be my favorite