Quickstart Guide : Where Have All My Assets Gone? : Filtering: Less Might Be More
   
Filtering: Less Might Be More
Another convenient way of narrowing down the huge amount of records displayed in the Collection window is to filter them. With filters, you can easily adjust what you see (what is in your collection): for example, PDF files only, or assets that were created last February, or pictures of a certain size, or any combination of criteria.
As long as a filter is active, any further search operation – Quicksearch, Category Search, whatever – will only take into account the collection as defined by the filter criteria, not the whole catalog. Accordingly, the Find All Records command (or the Ctrl+G / Cmd+G shortcuts, respectively) will only find records that match the filter criteria.
Once you’ve found adequate filtering criteria, you can save your configuration(s) as filters and subsequently switch them on and off as you need them.