Reviewing is a very important skill. Without reviewers there would be no journals. Further, peer review is said to improve the quality of publications. But you may have received reviews that were not very helpful. What, then, is a good review, and how do you write one? This workshop aims to answer that question by putting you in a reviewer’s shoes. It will consist of small group work, complemented by plenary discussion and some suggestions as to how to be an effective reviewer.