Colorimetry of North American Surfaces, is a catalog of images taking the form of a painting card display and a painting card booklet. 
By creating its own methodology, it produces a cohesive and unique color catalog constructed around the surfaces of the urban environnement. 

It surveyed 6 North American cities such as Montreal, Chicago, Detroit, New York city, Toronto and Washington Dc. 
It makes links in between the similarities of North American surfaces in order to unify the colors in between cities and to create a topology and a language of its own.