Today Iker Castrillo presented his TFG work at the Autonomous University of Barcelona. His work was centered on the development of crystalline nanostructures on PBF thin films. I had the pleasure to direct this work in collaboration with Angel Alegria at the Materials Physics Center (MPC – Donostia, Spain). The PBF samples were provided by our Italian partners, Michelina Soccio and Nadia Lotti, from the University of Bologna. Also, we counted with the collaboration of Beatriz Robles-Hernández from MPC. This whole team made it possible for the work to develop fast, efficiently and filled with great results. Iker performance during the project deserves a special mention because it was just excellent, and I hope for him the best in his career.