The “Paris-Saclay Ultrafast X-ray and Attosecond Science School” is a biannual thematic school organized by the Institute for the Sciences of Light at Paris-Saclay University, in collaboration with the “The Frontiers of Attosecond and Ultrafast X-ray Science School” in Erice, Italy. Antonio Mazzarone and Domenico Compagnini attended the School presenting posters entitled “Correlative Ultrafast EUV Microscopy and Transient Reflectivity of Functionalized Nanoparticles Supracrystals” and “Design and Implementation of in-line diagnostics for real-time ultrafast EUV ptychography”.