Abstract art or painted over graffiti?

I've taken a series of pictures of walls that have blocks of painted over graffiti on them. They look like modern, abstract art to me. I've posted one set over on my flickr site. You can go there to view them all:
http://www.flickr.com/photos/picturegirl/sets/72157628296745071/show/

Vera : The Art and Life of an Icon

"It doesn't matter where I go as long as I break my routine and see new things." – Vera Neumann

This book is a must read for all lovers of color and for textile artists (who are probably all lovers of color anyway!). Vera: The Art and Life of an Icon

I can relate to much about her life, including the inspiration she gets from travel. She was a woman way ahead of her time. She was one of the first to copyright and license her work. All her scarves started with an original painting. She introduced Op-Art designs in the late 50's. She reminds me of Sara Little Turnball. I like to imagine that they knew each other.

Cover of the book.