As part of the COPIM project, my work packages are conducting some background reading groups. This week we are reading Susan Leigh Star, ‘The Ethnography of Infrastructure’, American Behavioral Scientist , 43.3 (1999), 377–91 <https://doi.org/10.1177/00027649921955326>. I had read this a long time ago but enjoyed revisiting it. I thought, in a spirit of openness, that I would share my notes on this article.