“…If the keywords of the "pop-up" group led to few results, more results were found using the keyword "temporary" (used in double resulting combination first with words such as "strategies," "housing," "architecture," "uses," "structures," and "urban planning"). The results can be grouped in the following categories: temporary housing, in the context of emergency or to respond to new demands [47,48,[53][54][55][56][57][58][59][60][61][62][63][64][65][66][67][68][69]; temporary uses and strategies in the city [5,[7][8][9]11,24,47,[70][71][72][73][74][75][76][77][78]; life-cycle and reuse of temporary structures [13,[55][56][57][58]64,[79][80][81]. Being conceived of as "temporary," pop-up environments are characterized by two fundamental properties-they have an expiration date that refers to their period of use, intermediate between the previous one that was interrupted and the next one that has not yet be...…”