You may have spotted a few posters popping up in the city - and they have a very important meaning.
Invisible Cities is the social enterprise that offer visitors and residents alternative city tours training people affected by homelessness to become walking tour guides.
The funds raised through the tours are reinvested into further training for staff.
Now they are working to raise awareness of homelessness in the capital with eye-catching posters that aim to make "the invisible, visible".
The posters have been designed to comment on homelessness and how we too often treat people on the streets as if they were invisible.
Zakia Moulaoui, Founder of Invisible Cities says: "One of our guides once said to me: 'when you are homeless and on the streets, people don't look at your, they look through you'."
"You are invisible and our organisation aims to change that, create a real conversation around the issue of homelessness while giving our guides a voice and a platform. These posters are another way to do this."
Earlier this year Edinburgh Live joined Sonny's "Crime and Punishment" themed tour, which explores much of Edinburgh's criminal past, as well as the places and institutions which helped him live on the streets.
Invisible cities offer tours in in Edinburgh, Glasgow, Manchester and York, which you can book online here.
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