Abstract:External peer review is a hallmark of science.''Published in a peer-reviewed journal'' is a sign of quality, meaning that the work has been scrutinised by knowledgeable and independent peers.Moreover,...External peer review is a hallmark of science.''Published in a peer-reviewed journal'' is a sign of quality, meaning that the work has been scrutinised by knowledgeable and independent peers.Moreover, peer review also serves the purpose of improving the work after the authors have done their best and, thus, being a reviewer carries a responsibility.However, it comes with little reward; reviewing is usually done without financial compensation and often outside of work hours.But reviewing is rewarding in itself!Besides being pro bono, it exposes you, as a reviewer, to novel findings and adds a new perspective to your own research and scientific writing.And you can add ''Peer reviewer for Journal of X'' to your CV.This Doing Science article will deal with peer reviewing of journal articles and conference abstracts.For those of you familiar with the series, the format will be slightly different.Different people tend to have rather personal approaches to reviewing, and rather than generic tips, thisRead More