This can be particularly useful if you want to give a publication to another person and want to check what fonts you are currently using.
Select Font Usage… from the Tools menu. This will bring up the Font Usage dialog.
To see which objects use a given font, click on the font name in the Font list.
To go to a specific text object, select it in the Usage list and click the Go to Item button. The Font Usage dialog will close and the chosen item will be selected for you in the current view.
Note:
To show the text object without closing the Font Usage dialog, double click on the item name in the Usage list.