Prolog Grotesk is a sans-serif typeface that expresses its warm, organic character through precision in fine, technical details. The design of the typeface aims to be highly legible on posters and signage, as well as in body text and marginal sizes, making it versatile for complex applications. The work „Prolog (Grotesk) Italic“ expands 6 styles of the typeface with their corresponding italics. It showcases documented corrections and the current version of 12 styles in the font family.