Documentation for JIRA 5.2. Documentation for other versions of JIRA is available too. 
Getting started
The complete JIRA user's guide
Gathering information on a project
Are you evaluating JIRA for your team? Check out Quick Start for new evaluators and JIRA Ninja Training.
Administering
The complete JIRA administrator's guide
Migrating from other issue trackers
Need more resources? Check out the JIRA Resources page.
Doing more with JIRA
Using JIRA in an enterprise environment
Making JIRA agile with GreenHopper
Testing web applications with Bonfire
Contributing to the JIRA Documentation
Do you want to customise JIRA for your team? Check out the documentation for developers.
Overview
Content Tools
Apps
See our Getting Help page for details.
Raise an issue for our developers.
See answers from the community.
Tweet, blog and update our documentation.
Except where otherwise noted, content in this space is licensed under a Creative Commons Attribution 2.5 Australia License.