In the commercial and marketing fields, the concept of a “corner” has various meanings. It is generally associated with retail, where it refers to a space dedicated to a brand or partner within a physical store or online platform. Originally, corners were introduced in Parisian department stores, offering specific areas with sales staff specializing in certain brands. Today, this practice sometimes extends to mass retail, particularly in supermarkets where one finds service or brand corners, and even in gas stations, such as CDiscount corners at Géant or Norauto corners at Esso stations. Club Med also applies this concept by offering corners in partner travel agencies. Furthermore, in a more limited context, the term “corner” can also refer to a specific advertising format on the internet.