Barbershops from black barbers at first mostly served wealthy caucasians. Beauty salons became popularized during the 20th century, alongside men's barbershops. Blue Books could be purchased throughout the district in various barbershops, saloons, and railroad stations. Thus, many established barbershops, bodegas and restaurants (predominately of Haitian cuisine). Camptowns also contain other businesses such as barbershops, pawnshops, convenience stores, and so forth. The first wave of emigrants introduced Shanghai-style restaurants, beauty parlours and barbershops. Most modern barbershops have special barber chairs, and special equipment for rinsing and washing hair. In South Korea, barber's poles are used both for actual barbershops and for brothels. In some barbershops, people can read magazines or watch TV while the barber works. Several black-owned businesses were also opened, including banks, bars, barbershops, and other establishments. Known as "Airdry The Electric Towel", these units were used in restrooms, barbershops and factories. Large quantities were also used by barbershops as cologne and aftershave. Barbershops are also places of social interaction and public discourse. One of his barbershops was in the basement of a bank in Creston. In some instances, barbershops are also public forums.