A high luminosity Electron-Ion Collider (EIC) can provide precise and complete
data essential to the ultimate understanding of the structure of matter.
With a luminosity in excess of 10^33 /A cm^-2 s^-1 and a variable CM energy
in the range 30 to 100 GeV, EIC would be a powerful new microscope to probe
the partonic structure of matter. In particular, the lower CM energy
measurements on the proton and light nuclei are essential for a complete understanding
of hadron structure. My talk will focus on possible measurements at
EIC which address these issues.