An exception is made for the third requirement, novelty, for an important category of papers: the review article. Review articles, as the name implies, provide a critical evaluation of prior published work on a specific topic. Reviews tend to be quite popular with readers since they pack a lot of information in a little space, giving readers a great return on their invested time. They are a gift. Most readers don’t have the time or inclination to thoroughly research the full literature on a specific topic, and so greatly appreciate it when an author reports on the results of their thorough review of the topic. Mini-reviews are becoming increasingly popular as well (more on that below).