I came across the following two books in the Whitechapel Gallery bookshop yesterday, which are worth noting.
Moreno talks about how in the West, children tend to be protected in images to avoid the somewhat unlikely chance of the images being used for child pornography purposes, while this respect is not offered to African children. He therefore takes portraits of African youths and children, mainly in Senegal, and pixelates the faces, as a statement and protest about colonialism. Something to chase up later.
I noticed the second not for the subject, but for the cover, which combines two interest of mine, the idea of the red thread and sewing on images (or in this case, a book cover).