Catalogs are the behind-the-scenes backbone of the Organizer workspace. Catalogs are actually where all the information for tags and categories and collections are stored. When you install Photoshop Elements, a default catalog (called "My Catalog") is automatically set up for you on your computer, and may very well be all that you'll ever need. There are two circumstances where additional catalogs might be helpful. If your business requires you to maintain a large library of digital images, you may want to have a catalog to keep those business images separate from your personal photos. Or, if more than one person is sharing and downloading images to the same computer, it may be nice to have discrete catalogs for each person's photos: "Bob's Catalog," "Sara's Catalog," and so on.
To create a new catalog