ebook or a video?

Hi! i want to make a quit smoking tutorial with a quit unique method of quitting smoking to launch on CB. so what would be better? a book or a 10-15 minutes long video tutorial?
P.S it is not hypnosis, yoga, "don`t smoke as it`s bad for you", ecigs, patches etc.

Include both. It adds value to the package, and besides,
some people get more out of a course by reading, and
some people get more out of listening/watching. This
way you will have all of the bases covered.

Best of Luck my friend!