I was very sorry to hear of the death of Ron Johnston, whose impact in geography and political science was extensive. I didn’t know him at all really – just a few meetings at conferences or elsewhere, but he was always kind and generous. He will be known to many more people for his daunting list of publications, from the very specialised and technical to his comprehensive surveys for students.

Derek Gregory has a tribute at Geographical Imaginations; Clive Barnett at Pop Theory.