Work by Professor Ian Apperly and colleagues is highlighted in the cover feature of this week’s New Scientist magazine (see front cover, right). The article “Mind readers: how we get inside other people’s heads” describes research on social perspective-taking, to which Ian has made a significant contribution in the past decade. Among other things it describes a theory he has developed with Steven Butterfill which suggests that humans have two kinds of cognitive capacity for perspective-taking. One system develops in infancy, and enables fast and efficient judgements of simple perspectives. Another system develops throughout childhood, and enables more sophisticated but effortful judgements about what others think.