I thought TrueType fonts were for text only. How do logos work as TrueType fonts?
Most people naturally associate TrueType fonts with text. Arial, Courier New and Times New Roman are all examples of standard TrueType fonts containing text. There is, however, another standard TrueType font called Wingdings that contains symbols instead of text. Typing abc produces symbols rather than text. We use a similar principle when producing a logo as a TrueType font. The logo is split into multiple characters and when the font is selected and you type the associated characters such as abc you logo is displayed on screen.