The many implications of Louis Sander’s profound thinking are far from being fully tapped. We have here presented a brief sampling of how his work has led developmentalists, researchers, and psychoanalysts to reflect on the importance of his contributions to advancing knowledge in psychoanalytic theory and practice. As time passes, we are confident that his brilliant insights will stimulate continuing advances in knowledge in our field.

Jeremy P. Nahum, M.D.

Issue Editor