a TOK 'f' lowercase in the style of Seoul Namsan is the official sans serif typeface family of Seoul city. It aims to increase Seoul's identity and brand value, and its design succeeds in evoking the spirit of classical scholars and has beautiful negative spaces. The shapes echo the structure of Hanok (한옥), a traditional form of Korean housing which has beautiful curves in the traditional roof tiles. The family has 4 weights of regular width (Light, Medium, Bold, and Extra Bold) and 5 weights of condensed (Light, Medium, Bold, Condensed, Extra Condensed, and Black).