1, one page is simple, there is no need to paste a copy or anything, it is leaflet-like, mostly at job fairs, and the net is cast in a large area.
2, two pages, the content is more detailed than the first page, no need to copy. Used it well in the interview.
3, a book (including the first page cover color or black and white, the second page greeting, 345 pages resume text, followed by a copy, the last is the end, you can also add a back cover), hardcover version, used for key fishing.