Slides for the magic or optical lantern were a major tool for knowledge transfer in the second half of the 19th and early 20th centuries. Schools, universities, the church and many public and private institutions all over the world relied on the lantern for illustrated lectures and demonstrations. This volume brings together scholarly research on the educational uses of the optical lantern in different disciplines by international specialists, representing the state of the art of magic lantern research today. In addition, it contains a lab section with contributions by archivists and curators and performers reflecting on ways to preserve, present and re-use this immensely rich cultural heritage today. Authors of this collection of essays will include Richard Crangle, Sarah Dellmann, Ine van Dooren, Claire Dupré La Tour, Jenny Durrant, Francisco Javier Frutos Esteban, Anna Katharina Graskamp, Emily Hayes, Erkki Huhtamo, Martyn Jolly, Joe Kember, Frank Kessler, Machiko Kusahara, Sabine Lenk, Vanessa Otero, Carmen López San Segundo, Ariadna Lorenzo Sunyer, Daniel Pitarch, Jordi Pons, Montse Puigdeval, Angélique Quillay, Angel Quintana Morraja, Nadezhda Stanulevich, Jennifer Tucker, Kurt Vanhoutte, Márcia Vilarigues, Joseph Wachelder, Artemis Willis, Lee Wing Ki, Irene Suk Mei Wong, and Nele Wynants.