If you are seeking print books only, search "Everything," and then limit your results to "Book" Format.
If you are looking for e-books, search "Everything", and then limit Format to "Electronic Resources."
It is also possible to limit by campus, date of publication, and much more!
See this simple explanation of a Literature Review from Purdue OWL:
This Purdue OWL site offers a more detailed description of what you should include in a Literature Review:
Source: NKU Steely Library. (2015, July 30). What is a Literature Review?. [Video File]. Retrieved from https://youtu.be/Ry_54WleO7Y