SDT has a long tradition of bringing together researchers and practitioners from across the world with the common purpose of better understanding and engaging human motivation. This year's conference brings us back to the place where the theory first began...Rochester, NY. Since the first SDT conference, we have witnessed an amazing journey of growth, both in the elaboration and the depth of theory, and in the breadth of areas in which it is applied. We are excited for you to join us in exploring the latest and greatest developments, and meet a wonderful international group who work within the SDT tradition.