Articles written by other writers can be reviewed or evaluated by other authors who are interested in the same type or category of work. The summaries and, in some cases, the evaluations of these articles written by other different authors are known as article reviews. It is, therefore, mandatory for the writer who intends to do an article review, to be elaborately aware of the subject matter in which the author of the article is writing about. The article reviewer should simply be knowledgeable in the topic or subject matter. This is essential in the successful review of the article. Moreover, the audience is usually aware of the information in the article being reviewed. Therefore, it is advisable to be as brief and clear as possible when writing article reviews to avoid repetition of ideas since the audience is already aware of the article under review.