Very simple to understand how it works, also seen a video on utube before buying it , not much other things to do with it other then what it was made for , no instructions came with it , of course I messed up the first practice ring by not advancing it which put all the letters in one spot , I even knew to advance it and forgot to, I'm glad it's not on a finished ring, I think I'll burn that in my brain next time ,It works good for now