Think You Have Duplicate Files Or Photos? Maybe Not.
Often people ask me about duplicate photos or files when all they are seeing is two different ways of viewing the same single photo or file. For instance, albums in Photos show the same photos as the Library, and Recents and the Desktop in the Finder show files you can also see elsewhere. It is important to understand why these aren't duplicate items to avoid deleting the one and only copy of a photo or file.