We are pursuing several lensing projects including the statistics of strong arcs in galaxy clusters, the "proof" of the existence of dark matter (Figure shows the displacement between plasma (pink) and mass (blue), which, because the plasma dominates the baryon budget, demonstrates that dark matter must exist), and lensing of high-z objects and supernovae. For more details, see papers 56, 77, 81, and 82 in the publication list.