That would have to be quite an astonishing book. I hear there is at least one book promising to burn you in an eternal inferno which is rather popular.
Yes, although digital watermarking is becoming more and more commonplace. I recently read that the FBI claimed to have a solid lead on who among the Academy peers leaked The King's Speech.
Either way, loss of goodwill does not seem to have stopped the current media industry juggernaut from suing countless people. Or calling an appropriate punishment for private infringement $1.92 million dollars (http://arstechnica.com/tech-policy/news/2009/06/jammie-thomas-retrial-verdict.ars).
Here's to the vain hope that book reading contracts in a future libertarian world don't contain punishments for disclosure in the range of millions of dollars.
Edit: changed "earmarking" to "watermarking".