As well as writing programs, I spend a lot of my time writing about programs. I wrote a rather nice little book called Beginning Perl, and you can download that in PDF format, and co-authored one called Extending and Embedding Perl. I also wrote the second edition of O’Reilly’s Advanced Perl Programming.

I also wrote a regular column in the now defunct Perl Journal; here are the articles I wrote for that, and for other journals.