It takes one to two years for publishers to release a book in paper back, or even more if the book is still selling well. You can always tell that a book is not meant to be a "New York Times Bestseller" or whatever if it is originally printed as a mass market, and never as a hardcover. Like romance novels and things like that.And I'm done with my booknerd schpiel. :-)
Thanks for your comment; I'm all ears!