Introduction to the essay collection that documents presentations given at the conference “A Million Pictures. History, Archiving, and Creative Re-Use of Educational Magic Lantern Slides” that took place from 29 August – 1 September 2017 in Utrecht, the Netherlands. This conference was the summit of the collaborative research project A Million Pictures: Magic Lantern Slide Heritage as Artefacts in the Common European History of Learning (2015-2018), carried out by researchers from the Universities of Antwerp, Exeter, ...