Simon Tanner of King's College London gave a talk on the impact of digitization on photographic heritage. He discussed how digitization has led to an exponential growth in the number of photographs ever taken, from just a few million daguerreotypes to over 3 trillion photos today. However, digitizing cultural heritage collections poses financial challenges, with estimates that it could cost 14-19 million euros to digitize photographs held in European libraries alone. Tanner also addressed issues around curating digital collections and ensuring their long-term preservation and access.