If you have taught basic library instruction it might not hurt to show a video, especially if you have a tendency to explain the concept too quickly, thinking everyone must already know it. This information continues to be new and useful to novice researchers. Boolean operators still remain important elements of effective search strategies, particularly in database searching.
One of our library pages discusses Boolean logic, including useful images. Titled "Boolean Searching in Library Databases and on the Web" it explains how it works, provides examples, and visually demonstrates the concepts with Venn diagrams.
Below are a few more visual examples of how Boolean operators work or can be entered in searches. This first example is a Venn diagram:
|Circles colored red represent the kinds of results retrieved from such a search.|
|Library catalog interface showing a Keyword Boolean search with AND plus the OR operators.|
Their "Advance Boolean Searching" tutorial follows the same pattern, only it goes into greater specificity on Boolean searching. These two tutorials do not take long to complete, and it seems that they could easily be completed within a library workshop.
For brevity, this "Boolean Logic" tutorial takes the cake. It is only 27 seconds. During that short time frame it quickly introduces George Boole, then it displays Venn diagrams that illustrate how AND, OR, and NOT work. Finally, it extends an invitation to talk with a University of Illinois librarian if you want to learn more.