
ISBNs, the book codes. Do you need them? Don't you need them? Why do you need them? Where do you get them? Well you don't need them if you do an eBook and Paperback on Amazon but you do if you want a hardback.
ISBNs, the book codes. Do you need them? Don't you need them? Why do you need them? Where do you get them? Well you don't need them if you do an eBook and Paperback on Amazon but you do if you want a hardback.