Don Tolman – Farmacist Desk Reference Vol. 1, 2, and 3 is a digital online course/Ebook with the following format files such as: .mp4 (.avi or .ts), .mp3, .pdf and .doc .csv… etc. You can access this course wherever and whenever you want as long as you have fast internet connection OR you can save one copy on your personal computer/laptop as well.