Fantastic! There’s absolutely nothing you can do about it, and unless you see sales dipping off then I don’t think there’s anything you *should* do about it. The HF books work really well as books, so at best the torrents act as advertisements for the superior print product (not often you can say that with a straight face). At worst most of your downloads are going to people who wouldn’t have bought the book at cover price and who will, if they enjoy it, rave about it to others.
Picture by peasap