These encyclopedias or handbooks will have good general background information. Some may also include short bibliographies for further reading.
Use the indexes at the back of the volume or set to find specific concepts.
[Click on title to link to Library Catalog. Clicking on cover picture will link to Amazon.com]
These electronic books are offered through the OhioLINK Electronic Book Center. An advantage of e-books is that you can search for specific words and see where they appear in specific chapters or sections.
Click on Print View in the upper right to display a printable copy (PDF sometimes available).