I don't know of any up to date Perl 6 book.

The books will get you an idea of the philosphy behind Perl 6, and partly behind parrot.

But since they were published, much has changed, including parts of the syntax.

So if you want to learn Perl 6, checkout the pugs svn repository, read the examples and test cases, read the Synopsis, and hang out on #perl6 on irc.freenode.org and bug everyone with your questions.

If you have longer questions that aren't suitable for IRC discussoins, post them here (with a [Perl 6] hint in the title).