This document discusses contributing to the Drupal open source project through issue queues, version control systems, and code patches. It asks who has looked at issues and queues on Drupal.org, created or replied to an issue, checked out Drupal's code via CVS, created a patch for Drupal, tested or modified someone else's patch, or benchmarked a patch. The document also provides guidelines for writing issue descriptions, recommending they be concise, courteous, reproducible, provide necessary background, be justified, and constructive.