Reviewers are at the heart of the Psi Chi Journal of Psychological Research (PCJ). If not for their service, the journal quality would be seriously compromised as would its mission to support the educational and professional development of authors. Reviewers provide an expert evaluation for authors and the journal editor. Through this evaluation the authors learn to strengthen their skills as researchers by specifically receiving feedback on the content of their scholarly arguments, the applicability and accuracy of the methods chosen, and the implications of their work. Reviewers also provide important guidance to the journal editor, also a scientist, who may need support from expert colleagues on content and methods. As I close my first year as Editor in Chief of the Psi Chi Journal, I am more grateful than ever for the role reviewers play in the scientific community. This guidance document is intended to provide support to reviewers by describing the review process, clarifying expectations, and addressing some common challenges.