The document provides guidance on how to contribute to the Pharo open source project. It outlines that contributors can help by reporting bugs and adding details to existing issues, summarizing discussions, finding duplicate issues, asking others to take action, testing fixes, reviewing code fixes, fixing issues themselves, and working with others on issues. The life cycle of an issue is described from being opened to being integrated into Pharo if the fix is approved. Statistics are given that while there are currently over 600 open issues, over 11,000 have been closed in the past year, with over 5 being closed per day on average. Contributing helps improve Pharo's stability and users' productivity over time.