Skywriting is the process of using one or more small aircraft, able to expel special smoke during flight, to fly in certain patterns that create writing readable from the ground. These messages can be advertisements, general messages of celebration or goodwill, personal messages such as a marriage proposals and birthday wishes, or acts of protest.

Aerial advertising is a form of advertising that incorporates the use of flogos, manned aircraft, or drones to create, transport, or display, advertising media. The media can be static, such as a banner, logo, lighted sign or sponsorship branding. It can also be dynamic, such as animated lighted signage, skywriting, or audio.