Finding scholarly literature on a topic in history

For topics that are of wide interest, you may be able to find an essay that reviews the literature on that topic, and that sets it in context by discussing how other historians have approached that topic. This kind of essay is invaluable when you are starting a research project. There are two easy ways to find them:

History Compass is an online journal that publishes historiographic essays. If there is an essay on your topic, it can be an excellent place to start. Caution: if you do not find what you need with your first search, don't choose Edit Search, because you will then be searching all the publisher's online journals. Return to the starting point for History Compass to continue searching just within this journal.

If your topic is covered, check Oxford Bibliographies Online (currently, covers African Studies, Atlantic History, Medieval Studies, Military History, Classics, Criminology, Islamic Studies, Philosophy, and Renaissance and the Reformation, and many other fields)

America: History & Life and Historical Abstracts
In both of these bibliographic databases, "historiography" is a Subject. For example, in AHL, to find historiography on the American Civil war, do a Subject search for:
civil war historiography

Annual bulletin of historical literature
History Reference (SH). Firestone Z6205 .H65 and online

The "Blackwell Companions" are a series published both in print and online in Blackwell Reference Online. If there is one on your topic, it can be an exceptionally useful place to start reading.
Note: to find print copies of the Blackwell Companions, do a keyword search in the Main Catalog for " Blackwell companions to history," "Blackwell companions to American history," " Blackwell companions to British history," " Blackwell companions to world history," or " Blackwell companions to European history " to see if there is a volume in this series that covers your topic. Some copies circulate, and others are in the History Reference room on A floor.