ABSTRACT
Developing the Yoruba alphabet as a typographic font the style for application on computer graphic design for Yoruba audience, emerged from observations on incessant adoption of English alphabetic symbols as typographic font styles for encoding text elements of graphic design for Yoruba audience through graphic design software such as CorelDraw. Five objectives with five research questions and four hypotheses were formulated. The study examined the usage of typographic font styles in some selected Yoruba movie posters and investigated the effectiveness of the font software used in encoding their text elements. It also examined the codes/signs adopted as typographic font styles in some selected Yoruba movie posters and investigated the effectiveness of the literal language interpretation in relation to orthographic Yoruba language.