I have been asked to review, in average, 4-5 papers each month for the manuscript submitted in physics, engineering, and science journals. Scientific paper re-viewing is a process where a reviewer is invited to review unpublished manuscripts. Usually, an editor of a journal has the power to decide where to send the manuscript. Reviewer is an unpaid volunteer. Once he or she accepts to review it, a reviewer must unconditionally review the manuscript. Before I accept to review the manuscript, I ask myself if I am an expert in the field. I always recommend alternate referees to the editor, if I feel that I am not the expert on it. Timeline is very important to me. Once I was asked to review a manuscript within two days of email request, which I declined to review. I take the review process very seriously and I never make general comments, instead I provide specific comments / recommendations where I feel the manuscript needs revisions. This way, I feel that that authors are directly benefited from my review. I strongly recommend any one not to review a manuscript with prejudice or bias. To avoid biases, I encourage reviewers to make deliberate effort to review the manuscript in front of them and not in front of the authors. I am not intimidated by the name of authors. Any concerns I would have about the manuscript. I address them directly to the editor. Any comments, suggestions, recommendations?