Ceri Buck, who organises Invisible Food foraging walks in south London, draws attention to her latest project, Street Food: Urban foraging & world food
See www.facebook.com/InvisibleFoodStreetFood
or watch the video http://www.youtube.com/watch?v=kvndAp7LM-I
She appeals for donations to support this project, or pre-orders of the book, before 5 October 2013; see www.crowdfunder.co.uk/streetfood/

Image: blackberry (Rubus fruticosus), a common wild food in urban areas; Pleple 2000; Wiki Commons.