Review Article. These articles review the literature on a particular topic. A leading scholar in the field usually writes articles of this type although junior scholars, especially in the social sciences, sometimes publish reviews of a new literature or a subfield. To be published, such an article cannot be just a summary or synthesis of relevant articles and books. It must also provide some kind of critical perspective, pointing out contra- dictions, gaps, and enigmas in the literature, and suggesting directions for future research. The ordinary dissertation literature review is not sufficient. Despite the amount of work review articles represent, they often do not have as much weight as a research article. Most journals are interested in original research Theoretical Article. These articles review and advance theory Such an article traces the development of a certain theory and then goes on to propose a new theory, lambaste errors in the old theory, or suggest that one theory is better than another. It rarely has any concrete evidence. Again, advanced