EPI provides sermons and teaching curricula on a very wide array of topics. These can all be downloaded at no cost. Also, several books are available for purchase from the founders of EPI.
EPI stores its resources–curricula of various lessons and teaching series on the following link:
Documents from EPI International are available to anyone and may be downloaded and used as necessary.
Clear Theology houses the works of EPI Founder Dr. Jack L. Arnold. Over 1000 complete sermons are available for anyone.