What are the main forms of advertising

Use newspapers, periodicals, books, directories, etc. to advertise;
Use radio, television, film, video, slideshow, etc. to broadcast advertisements;
Use buildings or spaces such as streets, squares, airports, stations, docks, etc. to set up street signs, neon lights, electronic display boards, shop windows, light boxes, walls and other advertisements;
Use theaters, stadiums (halls), cultural centers, exhibition halls, hotels, restaurants, playgrounds, shopping malls and other places to set up and post advertisements inside and outside;
Use vehicles, boats, planes and other means of transportation to set up, draw, and post advertisements; (6) Mail all kinds of advertising materials through post offices;
Use gifts in kind for advertising;
It is a kind of database marketing by using network Email, BANNER, etc. for advertising.
Call center, a type of database marketing