Informally, such as in emails and on the Web, the same character may be used for an apostrophe and for both the open and closed single quotes ('). On a standard QWERTY keyboard it is the key between the semi-colon and Enter key. Shifted, it produces double quotes. In typeset material, curly quotes are the professional standard. One glyph is used for the apostrophe and the closed single quote (’) while another is used for the open single quote (‘). These may be described as looking a bit like tiny 6 and 9.
- On a Mac, use Option+] and Shift+Option+] for the left (open) and right (closed) single quotes: ‘ ’.
- For Windows, use ALT 0145 and ALT 0146 for the left and right single quotes (hold down the ALT key and type the numbers on the numeric keypad).


