In what she calls a "time-tunnel artwork", photographer Annie Wang has been taking a periodic photo of herself and her son over the past 18 years, each time with the previous photo in the background.
Different layers of my son and I emerge on the same surface after a lengthy accumulation of detail and texture. Different stages of my son and I are overlaid; and from the different pictures we have created dialogue with each other in this dimension upon compressed dimension. From within these dimensions will emerge a new depiction/visualization of Motherhood.
Here are two consecutive photos in the series from when her son was young.
(via swissmiss)