As of May 1st, 2017, Franz Johner has taken over the direction of the “Grüne Bibliothek” of the ETH. At the NEBIS network office, he has been the expert for subject indexing with UDC in NEBIS. Many employees in NEBIS got to know and appreciate him as a course instructor. We wish Franz Johner all the best for his new task and want to thank him for 20 years of valuable cooperation. At the NEBIS network office, the field of UDC subject indexing will be supervised by Xavier Houtmann.