The only book that is necessary I think is Olinger's anatomy book, especially if they will use that for lab exams etc. (they did for GIGU block for me, because it was when quarantine started), and I do not know if they will use donor pictures or just Olinger book pictures for your class. Another book that is pretty helpful is BRS physio. other than that, class notes is more than enough to do well. Also, I think getting a hard copy of both books I mentioned is unnecessary. perhaps First aid hard copy is a good to have.