Jon Orwant
Jon Orwant, a well-known member of the Perl community, founded The Perl Journal and co-authored O’Reilly’s bestseller, Programming Perl, 3rd Edition.

Programming Perl Programming Perl
by Tom Christiansen , brian d foy , Larry Wall , Jon Orwant
Fourth Edition February 2012
Print: $54.99
Ebook: $39.99

Games, Diversions & Perl Culture Games, Diversions & Perl Culture
May 2003
Print: $39.95
Ebook: $31.95

Web, Graphics & Perl/Tk Programming Web, Graphics & Perl/Tk Programming
March 2003
Print: $39.95
Ebook: $31.95

Computer Science & Perl Programming Computer Science & Perl Programming
by O'Reilly Media, Inc.
November 2002
Print: $49.99

Programming Perl Programming Perl
by Larry Wall , Tom Christiansen , Jon Orwant
Third Edition July 2000
Ebook: $39.99

Mastering Algorithms with Perl Mastering Algorithms with Perl
by Jon Orwant , Jarkko Hietaniemi , John Macdonald
August 1999
Print: $39.99
Ebook: $31.99

Jon Orwant