Join Cartwheel Art Tours, on Saturday October 16th, for an in-depth graffiti tour experience, with Steve Grody, author of Graffiti LA and Jonathan Cirlin (aka espy dpt znc), muralist, artist and curator of "ktownwallz_project" in Pico-Union. It's on this tour where we'll explore six alleys, in a neighborhood with old craftsman homes, and discover 200 graffiti walls. The walls have…