Thinking about Perl 6 by brian d foy perl6 oreilly interview An Interview with Laurent Rosenfeld, author of Think Perl 6 Read it
5 things I learned from Learning Perl 7th Edition by David Farrell community learning-perl oreilly brian-d-foy A surprisingly in-depth book for beginners Read it
Understanding Haskell types by David Farrell development types oreilly cis194 lyas ghci old_site The basics Read it