My firm motto as an Art Director is a good cover will not sell a crappy book, a great book will sell itself despite what is on the cover, but if you put a great cover on a great book, it will get the sales representatives behind the book (they may even read a chapter or two) and your initial orders will sky rocket.
YES.
Thanks for jumping in here -- you've explained it better than I could!
Re: breaking down some line items
YES.
Thanks for jumping in here -- you've explained it better than I could!