I'm always fascinated with those timeline photographs like the one Ronni has at Time Goes By or the portraits taken over three decades of the Diego Golberg Family.

But I'm also interested tracing the family resemblance across generations. Of course it's easier to see ourselves in the younger generation than for the youngsters to imagine that we were once very much like them.

I don't get to see my family very often and so the images I have of them tend to be of how they looked 30 years ago. When I do visit, I'm so struck by how my niece, Natasha, looks like her mother at the same age, I tend to call her "Mary" by mistake. And when Mary sent me her own high school graduation photo years ago, I was astonished at how it looked like Mom's. The heart-shaped face, the same smile and chin, the same nose (we all have that!) and even the same eyebrows. Then last week I get this photograph of Natasha. And although she's a few years younger, I definitely see the family resemblance.