Limits are organized by fields (like Author, Format, Language, Subject, etc.). You can use limits in one of the following ways.
Click on a limit to narrow your search results to meet that limit. For example, if in the Material Type field you click the checkbox next to "Book" then the Include icon your search results will only include items that are books.
To exclude a limit from your search results, click the Exclude icon. For example, if you select to exclude Books and DVDs, your search results will include everything but books and DVDs.
Select one or more limits to include in or exclude from your search results. You can also select one or more limits within a single field by clicking the checkbox next to the limit(s). For instance, under Material Type you may select both Blu-ray Disc and DVD.
A limit may have many choices (e.g. choice of library). Use the More and Fewer options to expose or hide limits within a field incrementally and use the View All option to open all of the limits in a separate window.
Click Only Show On Shelf Items to limit your search results to only items that are available for checkout.