Lithograph after W. S. Sherwill, A busy stacking room in the opium factory at Patna, India, circa 1850.
(Source: Wikimedia Commons)
The following sources provide overviews of history and related topics. They are a quick way to find out the basic facts and recent scholarly interpretations.
When using an article in an encyclopedia or handbook, always check the bibliography for further reading at the end of the article. It will provide a selective list of the books, articles, and, frequently, Web resources considered to be the most up-to-date and reliable.
Literature reviews are a particularly useful resource when doing research. They address the issues involved in a particular question and the debates among scholars. They map out the intellectual terrain succinctly and give you the major landmarks in terms of key authors and significant titles for greater understanding.