The macOS Photos interface is a study in minimalism: most of the action takes place in a single window, which you navigate through by clicking on items in the sidebar. (Of course, that approach doesn’t quite translate to the iOS version—see Navigate Photos for iOS.)

**①** The main Photos interface features a sidebar on the left; clicking in the Photos view brings up a tab bar at the top of the window.
The main Photos interface features a sidebar on the left; clicking in the Photos view brings up a tab bar at the top of the window.

Focus on the Sidebar

In previous versions of Photos, you could choose to navigate the main interface via a sidebar or a series of tabs at the top of the screen. Beginning with High Sierra, the sidebar is mandatory. ...

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