Learn essential peer code review practices from a Drupal core release manager in this 52-minute conference talk that focuses on improving team efficiency and code maintainability. Discover how peer reviews can reduce defect rates by up to 90 percent while fostering team collaboration and mentorship opportunities. Explore Drupal core's two-phase review process, including initial peer review cycles and final committer review stages. Gain insights into psychological principles behind effective code reviews, learn strategies for structuring change sets to enhance team productivity, and understand how to leverage automation tools to optimize the review process. Access downloadable presentation slides to reinforce learning and implement best practices in both Drupal contributions and general development workflows.