Christian S. Jensen is a Professor of Computer Science at Aalborg University, Denmark. His research concerns data management and spans issues of semantics, modeling, and performance. He is an IEEE Fellow and a member of the Danish Academy of Technical Sciences, the EDBT Endowment, and the VLDB Endowment's Board of Trustees. He received Ib Henriksen's Research Award 2001 for his research in mainly temporal data management and Telenor's Nordic Research Award 2002 for his research in mobile services. He is an editor-in-chief of The VLDB Journal and has served on the editorial boards of ACM TODS, IEEE TKDE, and the IEEE Data Engineering Bulletin. He was PC chair or co-chair for SSTD 2001, EDBT 2002, VLDB 2005, MobiDE 2006, MDM 2007, and TIME 2008.