The conference follows the tradition of a long series of high energy physics conferences, the International Symposia on Lepton and Photon Interactions at High Energies. The program features plenary sessions covering topics of major interest to the particle physics community. New this year will be two (or three) tracks of parallel sessions that will provide an opportunity for additional presenters to give a more in-depth presentation of individual physics results. The conference is hosted by the University of Toronto, and will take place at the Westin Harbour Castle Hotel on the lakefront in downtown Toronto. Registration opens January, 2019.