ONLINE HELP AND TUTORIALS
A guide to Dewey Classification or How
dewey brochure.pdfEBSCO--ONLINE HELP AND TUTORIALS
Look at each database for HELP links. Some examples are:
Broaden or narrow your search by combing words or phrases using the Boolean operators AND, OR, and NOT.
The results of performing Boolean searches are sometimes illustrated by the diagrams below (called Venn diagrams.) The diagrams show graphically howusing the AND operator narrows a search,using OR broadens a search,and using NOT excludes material from a search.
Many databases and search engines have an Advanced Search interface that allows for Boolean searching; you can also try just using a Boolean operator in the main search box.
north carolina and prohibition
items containing "North Carolina" and "prohibition." AND narrows a search, resulting in fewer hits.
zimbabwe or rhodesia
items containing either "Zimbabwe" or "Rhodesia" or both. OR broadens a search, resulting in more hits.
mexico not new mexico
items containing "Mexico" but not "New Mexico." Caution! It's easy to exclude relevant items.