When you run a keyword search in Shelf, you might notice that the numbers to the right of each filter change in value. These numbers represent the total number of search results, if that filter were to be added to the existing query.

For example, if a keyword search for Marketing returned 13 results, adding the Document filter would reduce the list of results to 3.

If I wanted to narrow this even further by adding the “e-book” tag as an additional filter, my list would be reduced down to 2 results.

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