This document provides guidance on how to contribute to Eclipse projects. It recommends contributing to projects you are interested in or depend on through documentation, user support, reporting bugs, suggesting improvements, and coding. The best ways to engage and contribute include participating in mailing lists, writing documentation on the wiki, submitting bugs and suggestions through Bugzilla, and providing code reviews through Gerrit. Following specific projects, weighing in on discussions, and submitting code for review are encouraged ways for newcomers to get involved in open source projects.