Emergency Training Associates is the parent company that owns and operates 4 specific divisions, all serving the Emergency Services Community. EMS Books.com has been providing Emergency Services texts and training materials since the early 70's. FirehouseBooks. EmergencyTees and FirehouseFoods have grown into specific divisions of ETA over the years. A family owned and operated business, we have grown from a front porch operation to a large warehouse. We currently carry over 5000 titles of books.