Piled higher (&) Deeper authorship is no guarantee of quality content.
Quite seriously, tho, if you can tell me the PhD author is a bioinformatics practitioner with a some serious CS and Perl background, I'd take citing the authorship more seriously. But merely citing degrees is NOT a recommendation, per se. Try "Learning Perl" -- at least for a start.
ww, you can't learn python from "Learning Perl" and "Learning Perl" doesn't touch upon biology
Have you even looked at the freely available primer that is the inspiration for this book? Its pretty good