Book reviews can help you understand the historiography because they offer critical assessments of books on your topic and their reception by other scholars.
Top Book Review Search Engines:
Book Review Digest Plus--reviews of books published from 1983--present.
Book Review Digest Retrospective--reviews of books published 1908-1982.
Book Review Index --offers reviews of mainly scholarly books published from 1965-present.
is a great place to find book reviews!
>Type in your book title in quotation marks
>Checkmark the "Reviews" box down on the left sidebar as show in the graphic above
JSTOR will then show you mainly just book reviews.