Heaviside is a complex cultural space located in Ahyeon-dong, Seoul. We focused on expressing Heaviside’s values ​​of expressing one’s tastes and interests rather than a typical F&B space. Heaviside is named after mathematician Oliver Heaviside, who created a step function formula that goes back and forth between 0 and 1. From here, we got the theme of a space where visitors can switch their daily lives on and off. We designed a logo that replaced the ON/OFF mode with an outline and solid version of the typography. The illustrations were designed to be read naturally like pictograms by simplifying the various elements that make up the space.