My library pane is missing, how to get it back

Question

I have already searched in the shortcuts in the Xcode preferences but I couldn\'t find a way to get it back.

My current interface:

Answer 1

Xcode 11 and 12: Click the "plus" button at the top, left of the "Show/Hide Code Review" button. Alternatively, use "View > Show Library" or hit Shift-Cmd-L.

Xcode 10: Click the "square in a circle" button at the top, left of the "show standard editor" button. Alternatively, use "View > Libraries > Show Library" or hit Shift-Cmd-L.

Answer 2

XCode 11

Click the button highlight in the image.

Answer 3

Check to see if it is buried under some other window - particularly if you've dragged xcode to a different monitor. The library shows up on the monitor that xcode was opened onto, and it won't appear atop something like a full screen video playback.