To many Londoners, the homeless population remains semi-invisible. American Street artist Michael Aaron Williams captures this lack of interest with a new series of works on cardboard, which he's been busy pasting up over London for the past three months:
...just like the actual homeless, the people on the street ignore the pieces and many times see no worth in them. However, Some people have and are encouraged to take these home where the pieces can survive.
Michael's also been active in Paris and Rome with similar pieces. Keep an eye open for further examples.