Dr. Gerald F. Spaeth, Head of Unité Parasitologie Molécularie et Signalisation, Institut Pasteur (Paris, France) and two of his associates visited the Chinese National Compound Library (CNCL) in the morning of December 18, 2013. They were warmly greeted by Drs. Caihong Zhou and Dehua Yang on behalf of Professor Ming-Wei Wang, Director of CNCL.