You can assign a text font as part of the text style definition. Several factors depend on the type of text you are working with.
Fonts define the shapes of the text characters that make up each character set. You can use TrueType fonts in addition to compiled SHX fonts.
Several factors affect the display of TrueType fonts in a drawing.
Several factors affect your choosing, entering, and displaying international text in a drawing.
A font used in a drawing but that is not currently available on your system is automatically substituted with another font.