Peter Hook was interviewed by Richard Purden for Guitar.com. He visited the grave of of Ian Curtis recently. About the lasting influence:
There were a lot of flowers there when I visited a couple of days ago. The same reason Joy Division caught that generation between 1978 and 1980 is the same reason it was captured ten years later, then twenty years later and so on.
He spoke very well to confused teenagers not knowing where they were going. His bleakness, storytelling and his life of unrequited love, having a child and ending up divorced as he was going to be, this was all going on before he died at the age of 23. Young people go through the same things now and they need music for solace and inspiration, Joy Division fills that role.