Yaxun Tang received his B.Sc. (July 2003) and M.Sc. (Auguest 2005) in Geophysics from Tongji University, Shanghai, China. He joined the Stanford Exploration Project in September, 2005 and is currently working towards a Ph.D. in Geophysics at Stanford University. He is interested in target-oriented wave-equation least-squares migration/inversion and wave-equation-based tomography. He is a student member of SEG.