To help a friend, I was searching for a better image of the 'change curve' than the one I first used here in 2009. Back then they were surprisingly tough to find online. Now there are tons of them, adapted to countless different scenarios. This would seem to suggest that a vast number of people have got beyond the 'depression' phase since then ;-)
At any rate, here's a useful overview of various models that help make sense of change, based on Elisabeth Kubler-Ross's five stages of grief, care of Warwick University.
I've posted a few of the better images from the pile that turned up.