Late to the comment party, hopefully this still helps someone! Probably the most important knowledge is to learn the Mac modifier key symbols, since they'll he

Late to the comment party, hopefully this still helps someone! Probably the most important knowledge is to learn the Mac modifier key symbols, since they'll help you learn more shortcuts from the menu items you use. ⌃ Control ⇧ Shift ⌥ Option ⌘ Command ——— SCREENSHOTS ——— [⌃⇧⌘4] Copy screen selection to clipboard. In this mode: - Press [space] to capture a single window. - Hold [⌥] to toggle whether to include window shadow. [⇧⌘5] Show extra options, including screen record (10.14+) ——— MISSION CONTROL ——— [⌘MissionControl] Show desktop [⌘Tab] Switch between apps. In this mode: - Press Tab to go highlight the next app. - Press [⇧Tab] or [`] to highlight the previous app. - Press [Q] to quit the highlighted app. - Press [H] to un/hide the highlighted app. [⌘`] Switch between windows of the current app ——— TEXT EDITING ——— [⌥Delete] Delete word [⌥⇠]/[⌥⇢] Move cursor to next word [⌥⇡]/[⌥⇣] Move cursor to next paragraph [⌘⇠]/[⌘⇢] Move cursor to start/end of line [⌘⇡]/[⌘⇣] Move cursor to start/end of text field ——— FINDER ——— [⌘Delete] Move to trash [Enter] Rename selected file [⌥⌘V] Move copied file here - You can see this option if you open the Edit menu and hold down [⌥]. ——— DRAGGING ——— - You can drag the "document proxy" icon in any titlebar. Make sure to hold the icon for a bit before dragging. (This delay is probably to prevent people who want to move the window from dragging the icon.) - If you're dragging a file into a folder, press [Space] to immediately open the "spring-loaded" folder. - In many apps, hold down [⌥] to duplicate instead of move. - In Finder, dragging a file across filesystems will duplicate by default. Hold down [⌘] to move instead. - You can [⌘Tab]/[⌘`] while you're dragging an item. - To navigate a open/save dialog to a particular place, drag the folder or file into the edges of the dialog. Be careful not to drag it into the middle white area of the dialog, as in some cases it might move/copy the file. - To open a Finder window at the same location as an open/save dialog, use [⌘R] (R for "reveal"). ——— (Note: There are many more shortcuts in each category. These are just the ones that I find the most useful.)