4. Advanced OPAC Search Screen Boolean Operators: AND, OR, NOT By default Keyword Anywhere will search in all fields: Author, Title, Subject, Notes, Publisher, etc. All of these = AND Any of these = OR
5.
6. Using the truncation symbol ? retrieves variations of the word: lumbering, lumberyards, lumbermen, etc. Changing the field will control where the terms are searched. The Boolean AND combines the sets of synonymous terms to find only those containing both concepts.
7. All titles retrieved have one or more of the words -- lumber or timber -- or have the word logging in the title, as the search query requested.
![Boolean search operators ,[object Object],[object Object],[object Object],[object Object],Dogs 10 results (all are about dogs) Dogs OR Cats 20 results (10 about dogs plus 10 about cats) Dogs AND Cats 5 results (all contain both dogs AND cats)](data:image/gif;base64,R0lGODlhAQABAIAAAAAAAP///yH5BAEAAAAALAAAAAABAAEAAAIBRAA7)