Nagler, 37, has now turned her collection of “hidden mother” photographs into a book. Every page reveals the lengths mothers went to in order to extend their repertoire of disguises. Some have covered themselves in flowery chintz and pretend to be armchairs. Others duck down behind the sofa, so that only their hands are in view, displaying the child like a puppet. Others turn their heads away from the camera, lean out of shot or unpin their hair so it falls over their face like a curtain. One woman, perhaps fed up with the absurdity of it all, simply covers herself in a white sheet and hopes for the best.