A poster campaign promoting a Spanish Nike exhibition last month, "Thirty 30 years of Running in Madrid," featured some feats of art that certainly hold their own with the art of feets. The posters, from Madrid agency Villarrosàs, feature one shoe per decade, supported by what is deemed the appropriate graphic style of the era. This Oregon Waffle, illustrated by Barcelona's Ricardo Rousselot, is of course the swingin' '70s. In the PDF: the '00 Air Max 360 is illustrated by Barcelona collective Vasava, which also did the '80s Air Stab. The '90s Air Max 180 is the work of Barcelona's Inocuo Design, while British designer Si Scott illustrated the new Nike+.