Annual Reviews is a nonprofit journal publisher of 51 review series in specific disciplines in science and social science based in Palo Alto, California.
Each review series contains 12 to 40 authoritative comprehensive review articles, covering the major journal articles on a specific topic during the preceding few years. The major topics in each subject are covered every few years, and special topics appear as appropriate. The reviews are widely used in teaching and research, and serve the purposes both of current awareness and introduction to a new subject. Since in scientific literature it is customary to cite in detail the sources only since the most recent review, these periodicals are among the highest ranking journals in impact factor for their subjects, as shown in the publisher's table. The reviews are written in a compact narrative style, with a minimum of descriptive text for each article covered. Many authors provide lists of summary points and future issues. The length of each review and the number of articles covered vary widely depending on both the topic and the preferences of the author. The articles are written by invitation to the authors, who are accepted authorities on the material covered.