Cren is a writer that start writing at the end of the 80′s. A french german writer that speak both languages but also a nice guy. Check out an interview of him that will present you his art. I have to say I’m totally down with what he say regarding the style specificity of each city and the impact that Internet give to graffiti. Some years ago we had Paris style, Berlin style, Barcelone style. Today we have such euro style… really a mess.