At the beginning of 80, a young artist in the rebel spirit crosses Montreal with his bucket of glue and a bag filled with posters. What was a student project becomes for Baudoin Wart an extraordinary visibility to be offered to his friends artists. An eye on the policemen, an eye on Michel Lemieux's poster or of Human Step, he sticks.

In journey, he is struck by the European approach of the posting and returns even more convinced of the necessity of offering this visibility in the middle cultural Montreal.

We do not stop the progress and even less Baudoin! From 87, with the purchase of a "minoune", Wild Advertisement distances itself by making the maintenance of fences, the question of urban neatness. Others also try to offer the service. At these "war" times the visibility of a poster is one hour in the day and are thus needed quantities to obtain the same effect as today. As in all the towns of the world, a single company survives and PS offers again the best possible visibility with a minimal quantity of posters.

In 94, supported by about sixty customers, PS convinces the municipal authorities to legalize the posting on the fences of building sites.

In 20 years of activity, the company grow from 3 to more than 30 employees and its fleet of lorries goes through streets 7 days a week. Nevertheless, PS remained faithful to the artists who mean looking for the visibility there which they need year after year.