Library databases are closed web (subscription based) searchable platforms that house information from a wide variety of sources. Closed means that these are only accessible to those with a subscription. They can contain encyclopedias, newspapers, magazines, videos, images, primary sources, academic journal articles, government documents, literary criticism, and more. Some databases are general, while others are subject-specific. No matter what type of database is being used, all can be searched following the below basic strategies.
Avoid Natural Language
Use Quotation Marks Around Phrases
Use the Advanced Search
Use Filters Provided by the Database to Narrow/Focus Your Results
Use Boolean Operators
Boolean Operators Explained:

A book review in JSTOR reveals the author's argument and places that argument in the context of the larger academic discussion of the topic. Finding book reviews is most helpful when developing a research question or writing a historiography. Once you know what historians have been arguing, you can join the conversation with your own argument.
Do the following steps: