Menu
Solution: To quickly access the Library Folder:. Open Finder. From the Go menu, select 'Go to Folder' (Keyboard Shortcut: Shift+Command+G). Type: /library/. Hit enter To turn this folder visible and keep it visible, you can change the settings here: Note: This option will not work for Mojave users (10.14).
The Library Folder on your Mac contains Preference Files, Caches, and Application Support Data. While regular Mac users may not find the need to access the Hidden Library Folder, advanced Mac users will at times come across the need to access files inside the Library Folder for troubleshooting.
Use the steps above for Mojave.