# Official log4j documentation

With the exception of the complete manual, the following documentation is included with the standard log4j distribution and also browsable online:

- short manual,

- complete manual (commercial),

- javadoc documentation,

- Chainsaw documentation,

- project history,

- FAQ,

- troubleshooting guide.

# Translations to other languages

- Spanish translation of the short manual Mauricio Santacruz (PDF, HTML)
- German translation of the short manual, courtesy of Dirk Schnelle. (PDF only at this time)

# Articles on log4j

- Don't Use System.out.println! Use Log4j by Vipan Singla

- Build Flexible Logs With log4j by Vikram Goyal

- log4j by Ashley J.S Mills, University Of Birmingham

- Add logging to your Java Applications by Kevin Brown

- How does the Java logging API stack up against log4j? by Kevin Brown

- OpenSymphony Logging Primer

- log4j FAQ at jGuru

- Think Again by Ceki Gülcü

- Supporting the log4j `RepositorySelector` by Ceki Gülcü

- Log4j class diagrams, courtesy of David Tonhofer

- Understanding Classloaders: log4j in a J2EE Environment by Vikram Goyal

- Logging für Java-Programme, Zu den Akten by Bernhard Bablok in Linux Magazine, 04/2002.

- Instant logging: Harness the power of log4j with Jabber by Ruth Zamorano and Rafael Luque, in developerWorks 2003

- Using Log4j in the Sun Java System Application Server by Matthew Litkey, Jay Galvin, and Marina Sum, from Sun.

- Reporting Application Errors by Email by Sean C. Sullivan, 2004-09-24, published by O'Reilly.

# Log4j presentations

- Advanced Log4j Louisville JUG presentation by Jonathan Cowherd

- Log4J In 30 Minutes Or Less by John Munsch

- Log4j, a logging package for the Java language by Ceki Gülcü

- Log4j presentation by the Edmonton Java Users Group

- Log4j by Brent Twenter

# Training & Professional support

The following organisations offer log4j-related consultancy and training services. Their inclusion on this page does not imply endorsement by the Apache Software Foundation.

- QOS.ch, Switzerland proposes professional support contracts.

- The Good Software Company proposes log4j training courses.

If you would like your log4j-related article or service to be listed here, then please send a note to the log4j-user@logging.apache.org list.

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