A Ladybird Book featured pretty prominently on Doctor Who this week. Not a 'proper' Ladybird Book, you might say. Not a Ladybird classic. The Romans, 1994 - not the wonderful L. du Garde Peach/Kenney classic from 1959.

But then it's unlikely that Amy Pond, now aged 19, would have the 1959 version by her bedside. Even in Doctor Who.