Reviewing a manuscript written by a fellow scientist is a privilege. However, it is a time-consuming responsibility. Hence, PPAM' Editorial Board, authors, and audiences appreciate your willingness to accept this responsibility and your dedication. PPAM adheres to a single-blind peer-review process that is rapid and fair, and ensures a high quality of articles published. In so doing, PPAM needs reviewers who can provide insightful and helpful comments on submitted manuscripts within 15 days after the time they accepted to review. Maintaining PPAM as a scientific journal of high quality depends on reviewers with a high level of expertise and an ability to be objective, fair, and insightful in their evaluation of manuscripts.