Annual Reviews provide thorough, authoritative reviews of recent journal literature in a specific science or social science discipline, and on current topics of interest in that field of study. These are useful to ground your understanding of a topic in the most current and impactful scholarship, and to get ideas for further reading and research.
Sage Navigators:
Use encyclopedias , handbooks, and dictionaries for definitions of concepts and ideas, and for overviews on major topics.
Example of finding reference sources on a topic using the advanced search screen in Sage Knowledge: