Sorry about this. It has to feel lousy to see a piece of yourself being passed around freely like this. Unfortunately, I see this only increasing as tablets and e-readers continue to grow in popularity. There's also no way to prevent ebook piracy the same as it wasn't/isn't possible to prevent digital music piracy.

Some hope lies in that fact that 1) a certain % will refuse to read a pirated ebook out of moral obligation, and 2) that another % will prefer to read on real paper. This is why I think the future isn't as grim as it was for the music industry. It will take quite a long time before materials tech is advanced enough to truly satisfy paper aficionados with a digital device.