The following publications are possibly variants of this publication:
- Learning Perl - making easy things easy and hard things possible: covers Perl 5.10 (5. ed.)Randal L. Schwartz, Tom Phoenix, Brian D. Foy. O Reilly, 2008. [doi]
- Learning Perl - making easy things easy and hard things possible (4. ed.)Randal L. Schwartz, Tom Phoenix, Brian D. Foy. O Reilly, 2005. [doi]
- Learning Perl (2. ed.)Randal L. Schwartz, Tom Christiansen. Unix programming, O Reilly, 1997.
- Learning Pearl - making easy and hard things possible (3. ed.)Randal L. Schwartz, Tom Phoenix. O Reilly, 2001.
- Intermediate Perl - beyond the basics of learning PerlRandal L. Schwartz, Brian D. Foy, Tom Phoenix. O Reilly, 2006. [doi]
- Intermediate Perl - Beyond the Basics of Learning Perl: Covers Perl 5.14 (2. ed.)Randal L. Schwartz, Brian D. Foy, Tom Phoenix. O'Reilly, 2012. [doi]
- Learning Perl objects, references, and modules - beyond the basics of learning PerlRandal L. Schwartz, Tom Phoenix. O Reilly, 2003. [doi]
- Learning Perl on Win32 systems - Perl programming for Win32, Windows NTRandal L. Schwartz, Erik Olson, Tom Christiansen. O Reilly, 1997.