A billboard bicycle (advertising bike) is a type of mobile advertising in [...] which a bike tows a billboard → with an “advertising” message. Gary Saldquo of Queensardquo, NY, New York began the 4/5 billboard bicycle concept in 1997. His billboard₂ bicycle was geared toward messenger bikes and measured 12" by 18".
Concrete poetry is an arrangement of linguistic elements in which the [typographical effect] is more important in conveying meaning than verbal significance. It is sometimes referred to as visual poetry, a term that has now [...] developed a distinct meaning of its own. Concrete poetry relates → more to the visual than to the verbal arts although there is a considerable overlap in the kind of product to which it refers.